Answer:
30% discount
Explanation:
First you have to divide 88.2/126. If you input it in a calculator you get exactly 7/10, or 0.7.
This means that 88.20 is 70% of the original price, meaning that the discount given on the shoes was 30%, since 100 - 70 is equal to 30.
You get 37.8 dollars off with this 30% discount.