Question

A customer pays $14 for a piece of pizza that originally cost 17 what is the percent decrease in the cost of the Pizza ?

Answer 1

To get the percentage decrease cost of the pizza, we have the formula below:

`r=\frac{\text{amount of decrease}}{\text{original price}}*100`

From $17, the price of the pizza became $14. This means $3 was deducted from the original price. This will be our amount of decrease. Together with the original price $17, let's plug them in to the formula.

`r=(3)/(17)*100=17.64706\approx17.65`

Therefore, the percent decrease in the cost of the pizza is approximately 17.65%.