Levy fee deduction depends on quantity of mosaic transferred or not

rwykr · May 15, 2021, 6:03pm

Hello,

Levy fee deduction depends on the quantity of mosaic transferred or not?

As mosaic creator can set levy config at the time of mosaic creation and that fee will be taken from the sender of the transaction. But it depends on quantity? or not?
For e.g.,

Fee is 1000 and quantity of mosaics transferred is 1 then total fee deduction = 1000
Fee is 1000 and quantity of mosaics transferred is 2 then total fee deduction = ?

CryptoBeliever · June 5, 2021, 9:39pm

If the levy is relative (type = 2) then depends on the amount transfered.
If (type = 1) then it doesn’t depend on amount transfered.

rwykr · June 7, 2021, 5:57am

No, I’m asking whether it depends on the number of mosaics transferred or not?

Means the levy fee is for one mosaic or levy fee*mosaics quantity or it’s not like that and it will deduct only one time for one transaction?

CryptoBeliever · June 7, 2021, 9:52am

I guess I answered above.
type=1 - doesn’t depend on the amount of transferred mosaics. Because it’s an absolute fee.
type=2 - it does depend on amount of transferred mosaics. Because it’s a relative fee.

rwykr · June 8, 2021, 5:50am

Yeah got it.

Could you please explain the calculation for levy type 2. In the documentation, it’s mentioned as ‘The fee is specified as multiple of the percentile of the quantity that is transferred.’

Can you please explain from the below example how much the total levy fee deducted from the sender’s account? and how?

Example,

Transaction: (BlockHeight 1294247)

{

“timeStamp”: 78369906,

“signature”: “0e15ddd2a4b6bd1e5db21b1a6ad1d6b2fb36aa49a7ff4cb78ff502bc2fae359f0c0db5e46920fa4a0e67417efcb7509e63f96af7e356c90863a809e63cc8310f”,

“fee”: 150000,

“type”: 4100,

“deadline”: 78456306,

“version”: 1744830465,

“signatures”: [

{

“timeStamp”: 78370245,

“otherHash”: {

“data”: “2eee6aa8f6ea5e83152a0cc5e97271095f4cc650f5d03f4a76e8a2301e24532f”

},

“otherAccount”: “NB3O425TAD7DK3R7OXMAMO55ELRFKIZBIO5QVZJS”,

“signature”: “d938a8d28d989c2890a1cb9756e13eaf391f43a29626aa4da1301190ab793ba374a40a648b81e5c98987d8e6a2a3cd2468e0d5cb7ca68433b7568ea5d3389c0b”,

“fee”: 150000,

“type”: 4098,

“deadline”: 78456645,

“version”: 1744830465,

“signer”: “b0d580f1b9b2095c696c1c8189e01c5729e8d21053556208e17ad80a3f5bed7e”

}

],

“signer”: “4c9182592db690c4b66c5f3d77604865f9216fc00e5fc545253c416e2f8326df”,

“otherTrans”: {

“timeStamp”: 78369906,

“amount”: 1000000,

“fee”: 150000,

“recipient”: “NCVGXTCV7YYGCUTOWRSEALEVHVTDFRJ54BQYDKTI”,

“mosaics”: [

{

“quantity”: 2,

“mosaicId”: {

“namespaceId”: “mizunashi”,

“name”: “minarin”

}

}

],

“type”: 257,

“deadline”: 78456306,

“message”: {

“payload”: “4578636c7564696e67207468652064697374757262696e67206d6f736169632e”,

“type”: 1

},

“version”: 1744830466,

“signer”: “680ff2aca38506b82f32bc5a7e7e7515353dbd79fbb39ce089c40514f883bc59”

}

}

Levy:

“levy”: {

“fee”: 100000000,

“recipient”: “NCVGXTCV7YYGCUTOWRSEALEVHVTDFRJ54BQYDKTI”,

“type”: 2,

“mosaicId”: {

“namespaceId”: “nem”,

“name”: “xem”

}

rwykr · June 10, 2021, 6:08am

@CryptoBeliever Can you please help here?

CryptoBeliever · June 11, 2021, 8:29am

Hmm. I will look at this today on how it’s calculated exactly.

rwykr · June 11, 2021, 1:04pm

Yes, Please have a look. I’m stuck here for a long and it’s causing a balance mismatch.
If you provide it, this will help us a lot.

rwykr · June 12, 2021, 1:45pm

Hi @CryptoBeliever, did you get anything?

CryptoBeliever · June 12, 2021, 9:30pm

I think it’s explained on mosaic creation view in wallet:

In this example, you have mosaic aaaa1:asdads.
Total supply: 100
Divisibility: 1
So there is 1000 part of the coin

Levy fee is: 100000000 μXEM which is 100 XEM

So for transfering one smallest part (0.1aaaa1:asdads) of aaaa1:asdads coin cost is 100000000 μXEM / 10000 = 10000μXEM = 0.01XEM

So for transfering:
1 aaaa1:asdads you will pay 0.1 XEM
10 aaaa1:asdads you will pay 1 XEM

====

In your example mizunashi:minarin has total supply 10000 with divisibility 0 so there is 10000 smallest parts of coin.

Levy is 100000000 μXEM = 100 XEM

So for transfering one (smallest) part of coin (1 mizunashi:minarin) you have to pay 100000000 μXEM / 10000 = 10000μXEM = 0.01XEM

So if you transfering 2 mizunashi:minarin you should pay in my opinion 0.02 XEM
If you transfering 100 mizunashi:minarin you should pay 1 XEM
1000 mizunashi:minarin → 10 XEM
10000 mizunashi:minarin → 100 XEM

rwykr · June 14, 2021, 6:35am

Hey,

Thank you so much for the reply.

I’ve few doubts here.

How you’ve calculated Total Supply? Initial Supply * Divisibility = Total Supply? From API, we can get only the initial supply not the total supply so asking.

How you’re saying ‘So there is 1000 part of the coin’. How you’ve calculated this?

rwykr · June 14, 2021, 7:08am

Hello,

For the below transaction, fee is 2000000 and mosaic mizunashi.minarin transferred quantity is 8. But the balance difference of the sender’s address between 905895 and 905894 blockheight is 2000000 which is without levy? only fee? then why levy is not considered here?

Transaction:

{
“timeStamp”: 54874204,
“signature”: “e5e35064d850e3cbf2af509414149d4ff740f937094f0591337ce6013b54925aaa26af31f64223f5e4206d7a775e5c15d2e2edff4b945d4ab97916c43432480b”,
“prevBlockHash”: {
“data”: “8f34e8cdc2d535a51fcfe23feb13c22b89bfd637f169a868f726840f2726dc56”
},
“type”: 1,
“transactions”: [
{
“timeStamp”: 54874179,
“amount”: 1000000,
“signature”: “341a942e541ccf6a1d0af307b5ddbd2e696e132cfcc96514fdfee48e2ab2ecf6fb82677f6fdc7b891b2778b2d591653d77bd8e58b16ee2befdf2e339cb4fe80d”,
“fee”: 2000000,
“recipient”: “NC5LMVQVN53336NHLAA4UVHGQBBJUYGF2YPZTXTB”,
“mosaics”: [
{
“quantity”: 8,
“mosaicId”: {
“namespaceId”: “mizunashi”,
“name”: “minarin”
}
}
],
“type”: 257,
“deadline”: 54960579,
“message”: {
“payload”: “e8bfbde58aa0”,
“type”: 1
},
“version”: 1744830466,
“signer”: “4d8cf75b12d41bdeb654bc42b5054b3e8df6cd722d9ed95d037d1190fe9cffca”
}
],
“version”: 1744830465,
“signer”: “e77a65fdf395a151cfccf7f51717a1974edbeeba3a2e4964e850f81bfed7cedf”,
“height”: 905895
}

http://localhost:7890/account/historical/get?address=NCVGXTCV7YYGCUTOWRSEALEVHVTDFRJ54BQYDKTI&startHeight=905894&endHeight=905895&increment=1
balances for 905894 and 905895 is 83878787058-83876787058=2000000

Other same example I got at 1980099 block for frog.dnt mosaic.

rwykr · June 14, 2021, 8:08am

For the below transaction, balances are not matching with the calculation you explained above.
Please correct me if I’m wrong anywhere.

total levy deduction:
29088800 part of the coin
then 500000000/29088800 = 17.1887461841
17.1887461841*11100(quantity) = 190795.082644

150000+150000+500000+levy = 800000+levy = 800000+190795.082644 = 990795.082644 not matching.

Balance difference from API is b/w 1992336 and 1992337 block height is,
13536661956-12980861956= 555800000

I know something I’m doing wrong here, can you please explain.

Transaction: (1992337 block)

{
“timeStamp”: 120594798,
“signature”: “b65fff87c3dbc357b44f33712097b3947ba11ece92b8e2c4ed76488367fc8f678a983c6028a3e9237cd67d39559f483fc23b3e289306173e476a778f10f8a802”,
“fee”: 150000,
“type”: 4100,
“deadline”: 120681198,
“version”: 1744830465,
“signatures”: [
{
“timeStamp”: 120594829,
“otherHash”: {
“data”: “9afd6f3ca3e84de3523f2bdc4c055e8298793b65b3ebd9c1980cbac5f335da98”
},
“otherAccount”: “NCDUX33YVVDMYYYFVFN4S7FOJ6PMZZFW6ORHYRI6”,
“signature”: “c4fbfcba429c949dd9ee052d8128d96299066349e46e68d03cf42710912887fb61cdab89e42e3800ceae29633d0dedcfaf271045f1a4ab516600af8d677ff008”,
“fee”: 150000,
“type”: 4098,
“deadline”: 120681229,
“version”: 1744830465,
“signer”: “9df9949cd89e95a726bf9fc210716b47f2a4d58b30ba6f5655e1eaabe6d99a5c”
}
],
“signer”: “7d3d23639d8746613b37348695a8da8025ab427174a19d55ecd2335dc3f2c89f”,
“otherTrans”: {
“timeStamp”: 120594798,
“amount”: 1000000,
“fee”: 500000,
“recipient”: “NB7CJOPYUMTOV2XNWOWIDD5SBVPVMMM5HKW4M34S”,
“mosaics”: [
{
“quantity”: 11100,
“mosaicId”: {
“namespaceId”: “evias.charity”,
“name”: “jungle-animal”
}
}
],
“type”: 257,
“deadline”: 120681198,
“message”: {},
“version”: 1744830466,
“signer”: “2def9185258bb2ff9b892185c07d1251b08011055312e2433aa495ed35396c20”
}
}

Mosaic definition:

{
“meta”: {
“id”: 2165
},
“mosaic”: {
“creator”: “2def9185258bb2ff9b892185c07d1251b08011055312e2433aa495ed35396c20”,
“description”: “Jungle charity. During a road trip through Malaysia, each Jungle animal including: Monkeys, Cats, Tigers, Elephants, Squirrels and Giant Ants - which we encounter, will increment the counter! Funds to be allocated for charity purposes afterwards.”,
“id”: {
“namespaceId”: “evias.charity”,
“name”: “jungle-animal”
},
“properties”: [
{
“name”: “divisibility”,
“value”: “2”
},
{
“name”: “initialSupply”,
“value”: “290888”
},
{
“name”: “supplyMutable”,
“value”: “true”
},
{
“name”: “transferable”,
“value”: “true”
}
],
“levy”: {
“fee”: 500000000,
“recipient”: “NB7CJOPYUMTOV2XNWOWIDD5SBVPVMMM5HKW4M34S”,
“type”: 2,
“mosaicId”: {
“namespaceId”: “nem”,
“name”: “xem”
}
}
}
}

rwykr · June 17, 2021, 5:10am

Hi @CryptoBeliever, any updates on this?

CryptoBeliever · June 20, 2021, 9:35am

I think that total supply must be calculated from initial supply and all deltas from mosaic supply change transactions. Basicly you synchronizing block by block and calculating it in your database.

CryptoBeliever · June 20, 2021, 10:22am

My mistake. Total supply don’t determinate how much relative fee will be taken.

If we have relative fee 500000000 then for each basic unit will be taken
500000000 / 1000000 / 10000 = 0.05 XEM for 0.01 jungle-animal (because divisibility 2), so 5XEM for 1 jungle-animal

So regarding the transfer above. There is
111 jungle-animal so leavy will be 111*5 = 555XEM

Regarding balance for sender (NCDUX33YVVDMYYYFVFN4S7FOJ6PMZZFW6ORHYRI6)

http://54.170.97.221:7890/account/historical/get?address=NCDUX33YVVDMYYYFVFN4S7FOJ6PMZZFW6ORHYRI6&startHeight=1992335&endHeight=1992339&increment=1

Block 1992336 13536661956 microXEM = 13536.661956 XEM
Block 1992337 12980861956 microXEM = 12980.861956 XEM

So the difference is 555.8 XEM (so 555 + 0.8 for transaction fees)

rwykr · June 21, 2021, 5:06am

Hello,

As per the below lines, the levy fee is 500000000, but what is the 1000000 and 10000 here?

If we have relative fee 500000000 then for each basic unit will be taken
500000000 / 1000000 / 10000 = 0.05 XEM for 0.01 jungle-animal (because divisibility 2), so 5XEM for 1 jungle-animal

and how you are saying this calculation is for 0.01XEM?

CryptoBeliever · June 27, 2021, 10:00am

and how you are saying this calculation is for 0.01XEM?
It’s 0.01 jungle-animal (the smallest unit because divisibility is 2)

Please check calculation from NEM wallet:

github.com

NemProject/NanoWallet/blob/d85fcf6f541ac7c42866a28703f07d54cf7ee0f8/src/app/modules/mosaics/create/createMosaic.html#L261

    
      
                        <span class="text-muted">.{{($ctrl.formData.levy.fee | fmtSupply:$ctrl.mosaicOwned[$ctrl.selectedMosaic].mosaicId:$ctrl._DataStore.mosaic.metaData)[1]}}</span> {{$ctrl.selectedMosaic}}
                      </div>
                      <div ng-show="$ctrl.formData.levy.feeType === 2">
                        {{ 'MOSAIC_DEFINITION_LEVY_FEE_TYPE_2_NOTE' | translate }}
                        <ul style="list-style:none">
                           <li ng-repeat="amountSend in [100, 1000, 3145, 10000, $ctrl.formData.properties.initialSupply] track by $index">
                              {{ 'MOSAIC_DEFINITION_LEVY_FEE_TYPE_2_NOTE_2' | translate }}
                              <strong>{{(amountSend | fmtSupplyRaw:$ctrl.formData.properties.divisibility)[0]}}</strong>
                              <span class="text-muted">.{{(amountSend | fmtSupplyRaw:$ctrl.formData.properties.divisibility)[1]}}</span>
                              <span class="text-muted">{{$ctrl.formData.namespaceParent.fqn}}:</span>{{$ctrl.formData.mosaicName}} {{ 'MOSAIC_DEFINITION_LEVY_FEE_TYPE_2_NOTE_3' | translate }}
                              <strong>{{( (amountSend * $ctrl.formData.levy.fee / 10000) | fmtSupply:$ctrl.mosaicOwned[$ctrl.selectedMosaic].mosaicId:$ctrl._DataStore.mosaic.metaData)[0]}}</strong>
                              <span class="text-muted">.{{( (amountSend * $ctrl.formData.levy.fee / 10000) | fmtSupply:$ctrl.mosaicOwned[$ctrl.selectedMosaic].mosaicId:$ctrl._DataStore.mosaic.metaData)[1]}}</span> {{$ctrl.selectedMosaic}}
                           </li>
                        </ul>
                      </div>
                    </div>
                  </div>
              </div>
            </div>
            </div>
          </div>

It’s about this screen in desktop wallet:

rwykr · July 6, 2021, 5:43am

Ok.

So, the calculation you did is,
500000000 / 1000000 / 10000 = 0.05 XEM for 0.01 jungle-animal

As per my understanding, here,
500000000 is levy fee from the mosaic definition
1000000 is the amount sent from the transaction
10000 is constant
the result of 0.05 is for 0.01 because divisibility is 2 from the mosaic definition

Please correct me if I’m wrong anywhere.

And in the above example, you did 111*5 = 555XEM
But mosaics quantity transferred is 11100 then why you considered 111?

rwykr · July 6, 2021, 5:54am

Why this is not working for the below example? Please correct me where I’m wrong.

150000+150000+150000+levy = 45000+levy
here levy is, 100000000(levy fee)/1000000(amt sent)/10000(constant)= 0.01 XEM for 1minarin as divisibility is 0.
So, for 2 minarin in the below transfer, the levy will be 2*0.01 = 0.02XEM
So, 45000+0.02 = 45000.02 which is incorrect.

From API diff, it should be 47000

Transaction:

{
“timeStamp”: 78369906,
“signature”: “0e15ddd2a4b6bd1e5db21b1a6ad1d6b2fb36aa49a7ff4cb78ff502bc2fae359f0c0db5e46920fa4a0e67417efcb7509e63f96af7e356c90863a809e63cc8310f”,
“fee”: 150000,
“type”: 4100,
“deadline”: 78456306,
“version”: 1744830465,
“signatures”: [
{
“timeStamp”: 78370245,
“otherHash”: {
“data”: “2eee6aa8f6ea5e83152a0cc5e97271095f4cc650f5d03f4a76e8a2301e24532f”
},
“otherAccount”: “NB3O425TAD7DK3R7OXMAMO55ELRFKIZBIO5QVZJS”,
“signature”: “d938a8d28d989c2890a1cb9756e13eaf391f43a29626aa4da1301190ab793ba374a40a648b81e5c98987d8e6a2a3cd2468e0d5cb7ca68433b7568ea5d3389c0b”,
“fee”: 150000,
“type”: 4098,
“deadline”: 78456645,
“version”: 1744830465,
“signer”: “b0d580f1b9b2095c696c1c8189e01c5729e8d21053556208e17ad80a3f5bed7e”
}
],
“signer”: “4c9182592db690c4b66c5f3d77604865f9216fc00e5fc545253c416e2f8326df”,
“otherTrans”: {
“timeStamp”: 78369906,
“amount”: 1000000,
“fee”: 150000,
“recipient”: “NCVGXTCV7YYGCUTOWRSEALEVHVTDFRJ54BQYDKTI”,
“mosaics”: [
{
“quantity”: 2,
“mosaicId”: {
“namespaceId”: “mizunashi”,
“name”: “minarin”
}
}
],
“type”: 257,
“deadline”: 78456306,
“message”: {
“payload”: “4578636c7564696e67207468652064697374757262696e67206d6f736169632e”,
“type”: 1
},
“version”: 1744830466,
“signer”: “680ff2aca38506b82f32bc5a7e7e7515353dbd79fbb39ce089c40514f883bc59”
}
}

Mosaic Definition:

{
“meta”: {
“id”: 89
},
“mosaic”: {
“creator”: “4d8cf75b12d41bdeb654bc42b5054b3e8df6cd722d9ed95d037d1190fe9cffca”,
“description”: “みなりん*コイン.”,
“id”: {
“namespaceId”: “mizunashi”,
“name”: “minarin”
},
“properties”: [
{
“name”: “divisibility”,
“value”: “0”
},
{
“name”: “initialSupply”,
“value”: “10000”
},
{
“name”: “supplyMutable”,
“value”: “false”
},
{
“name”: “transferable”,
“value”: “true”
}
],
“levy”: {
“fee”: 100000000,
“recipient”: “NCVGXTCV7YYGCUTOWRSEALEVHVTDFRJ54BQYDKTI”,
“type”: 2,
“mosaicId”: {
“namespaceId”: “nem”,
“name”: “xem”
}
}
}
}