Need Help about Sales Tax

is there anyone could explain the calculation of sales tax :

I have transaction in payment journal AP with amountCurDebit 2.400, then when i click “sales tax” button, there is a two records show the calculation of sales tax

sales tax code | amount origin | percent | sales tax amount

PPH | 2,222.22 | -2.00 | -44.44

VAT | 2,222.22 | 10.00 | 222.22

please help me to understand how axapta calculate to get the “amount origin” and the “sales tax amount” ?

thanks for your help.

You need to actually look into your tax setups.

Look into formula designer, it depends on Tax basis and calculation expressions(obviously the tax percent).