Question

a dress just went on sale and is 20% Off. To return to its previous price, How much in percentage should the price be raised?

Answer 1

20% because it went down by 20%

Answer 2

20 percent of 100 is 20 so the dress is 80 on sale so you need 20 which is 25% of 80
20 plus 80 equal 100 the starting price
25%