This is a useful question to answer. I believe there’s not a single place on earth that is free from some form of tax.
Tax is applicable only during transactions where money is exchanged, and it does not affect discounts.
If you decide to take the offer, the cost is determined by:
Cost for two pizzas = standard price - discount applied.
Cost for two pizzas = 2*10.50 - 2.00
Cost for two pizzas = 21 - 2
Cost for two pizzas = 19.00 dollars.
Now, you should add the sales tax to this amount. There are two methods to do this: the detailed method or the quicker method.
Detailed Method
Calculate the sales tax:
Tax = rate * total cost
Tax = (7.5/100) * 19
Tax = 1.425, don’t round yet.
Total Amount = total purchase + tax
Total Amount = 19.00 + 1.425 = 20.425. Now, round it off. The way to round when the last digit is 5 can vary; I usually round up, so my final answer would be 20.43 <<<<< This is the answer.
Quick Method
Final Cost = (Original Price - discount)*(1 + tax rate/100)
Final Cost = (21 - 2)*(1 + 7.5/100)
Final Cost = 19 * (1.075)
Final Cost = 20.425, which rounds to 20.43.
