What was the cost of items without all taxes?

Question

In Mac Donald following taxes are added on the price of purchased items.
1) Vat 12.5% of purchased items.
2) Service tax 4% of purchased items.
3) Edu. cess 2% of service tax.
4) Add. Ed. Cess 1% of service tax.

Diana went to Mac Donald with his daughter and they purchased some burger, Mc pizza & Coffee. Diana paid $ 932.96as bill.

Question: What was the cost of items without all taxes?

Answer 1

800 is answer
Let x be actual cost of the purchased items. So,
x+(12.5% of X)+(4% of X)+(2%of 4% of X)+ (1% of 4% of X)= 932.96.
1.1662*x = 932.96
X= 800