What is the percent discount the pizza store is offering?

Question

The 8" pizza sells for Rs 499 at my favorite pizza store. The store claims they have a great deal on the large 12" pizza, which is specially priced at Rs 954.

What is the per cent discount the store is offering?

Answer 1

AREA OF CIRCLE PI*R*R

So
area of small Pizzla - 64Pi
area of large Pizzla - 144Pi

Or
Relative Price = 144*499/64 or 1122.75

Discount Offered is 168.75 or 15%