How to get initial balance of account before it starts transactions

Hello,

How to find the initial balance of the account before it starts transactions? This is not included in transactions?

For e.g., for this account, https://explorer.nemtool.com/#/s_account?account=NC4RR7PCDLIUA2JVZATFE6PF5VAGBOSTDQEB7376 the first transaction is at 2121812 block height. But if I check the balance at 2121811 block height, it is 49500000.

When this account is credited with this balance? This is not included in a transaction? How to find such transaction? Because of this consideration, its creating problem with my application. Can anyone please help me asap? @CryptoBeliever?

I can see that first transaction is way before that block NEM - BlockChain Explorer
1843314

Ok Sorry. Let me check once again

Ignore. Let me check