Calculation inclusive of vat

Question

how to show and calculated  in inclusive vat in  base amount for exampal if per product price in 500 taka tow product sase 500+500=1000 discount 200 than case amoun 800 this amount 800 is base amount  I want this 800 taka inclusive VAT 5% bilow this example The black mark here is just right on a product. I want to do this calculation on the red circle below. How can I do that

 

 

Answer 1

So far I understood, you want to calculate the base price from the total price should be inclusive of tax (i.e reverse calculattion tax), right? then use the below formula

 

var basePrice = PriceIncludingTax / (1+Tax/100); 

 

test with number

var basePrice = 790/ (1+5/100); //5 is your tax percentage 

                          i.e 790/1.05;

                          ans:  752.38; // this is your base price excluding tax

 

Do let me know,  if you need some more clarification