Question

andy bought a cellphone for $120. After six months, he sold the cell phone for $78. What percent did he decrease the price of the cellphone?​

Answer 1

45%

Explanation:

$78 is 65% of $120, therefore, the price was decreased by 45%. To prove 78 is 65% of 120, multiply 120x0.65 and you'll get 78. The reason you use 0.65 is because 65% is 0.65 in it's decimal form.