By what percent is the price of each Iphone increased?

Question

According to a national market research company,the iPhone 7 cost apple about $225 each to manufacture. Apple sells the iPhone's for approximately $650 each. By what percent is the price of each iphone increase?

A.53%

B.289%

C.35%

D.189%

Answer 1

The price increased by a factor of

650 / 225 = 2.89 (with roundoff)

That corresponds to an increase of 289%.