Question

Mike's Bikes has mountain bikes that usually sell for $275 on sale for $220. Mike used this ratio to find the percent change. Is he correct? Explain. 55/220 = 25%

Answer 1

He is incorrect Mike wrote the ratio as the amount of change to the new amount. he should've used the ratio of the amount of change to the original amount, which is 55, 275, or 20%.

Im not sure if i am right

Answer 2

No. Mike wrote the ratio as the amount of change to the new amount. He should have used the ratio of the amount of change to the original amount, which is 55

275 , or 20%.

Explanation: