The task is to generate the correct answer for a given math problem.

Ex Input:
Problem: if each side of a square is increased by 325 % in length , find the percentage change in its area ?

Ex Output:
956.25 %

Ex Input:
Problem: a store sells chairs and tables . if the price of 2 chairs and 1 table is 60 % of the price of 1 chair and 2 tables , and the price of 1 table and 1 chair is $ 72 , what is the price , in dollars , of 1 table ? ( assume that every chair has the same price and every table has the same price . )

Ex Output:
63

Ex Input:
Problem: a retailer bought a machine at a wholesale price of $ 108 and later on sold it after a 10 % discount of the retail price . if the retailer made a profit equivalent to 20 % of the whole price , what is the retail price of the machine ?

Ex Output:
14