If I go to a pizzeria and order a large stuffed pizza that normally goes for $17 and I have a coupon so that I end up paying $13, what percent of a discount did I get? Please show how you got to your answer.

To find the percent of discount:

1) calculate the amount of discount: $17.00 - $13.00 = $4.00

2) divide this answer by the original amount: $4.00 / $17.00 = 0.2342941176,,, ---> rounded: 0.234

3) turn this answer into a percentage: 0.234 ---> 23.4%