如何从总额中获得税额？ [英] how to get tax amount from grand total?

问题描述

大家好，我的总税额和税额为％。现在我想用C＃显示税号。



i我在获取实际价值时遇到小错误。



这是我的代码。

  decimal  GrandTotal =  240 。 35 ; 
  decimal  Taxfactor =  15 ; 
 
 十进制 taxamount = grandtotal  - （（grandtotal * taxfactor）/ 100）; 

但是税金额

值给我36.0525，实际税额应该是31.35。



因为实际数据是小计= 209加税15％给出240.35。



i知道这是因为我计算了Grandtotal的税率，但我不知道应该在哪里修改。

解决方案

< blockquote> Total = nett *（（100 + rate）/ 100）;

Tax = Total *（rate /（100 + rate））;

ok我自己解决了这个问题





这里是代码。

  decimal  GrandTotal =  240 。  35 ; 
  decimal  Taxfactor =  15 ; 
 
  decimal  taxamount = grandtotal  - （（grandtotal * 100）/ 100 + Taxfactor）; 

hi all , i have grand total and tax amount in %. now i want to show the tax value in number using C#.

i am getting small errors in getting actual values.

here is my code .

decimal GrandTotal = 240.35;
decimal Taxfactor  =15 ; 

decimal taxamount= grandtotal - ((grandtotal * taxfactor)/100);

but taxamount
value gives me 36.0525 and actual tax amount should be 31.35.

coz what real data is subtotal = 209 plus tax 15% which gives 240.35.

i know it is because i calculate tax percentage on grandtotal but i dont know where i should modified.

解决方案

Total = nett * ((100 + rate) / 100);
Tax = Total * (rate / (100 + rate));

ok i have solve this my self


here is the code.

decimal GrandTotal = 240.35;
decimal Taxfactor  =15 ; 
 
decimal taxamount=grandtotal - ((grandtotal *100)/100+Taxfactor  );

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