Question

J.C. Penney sells a Timex watch for $139.99 that cost $89.97. J.C. Penney's percent of markup based on the selling price is

Answer 1

markup is 139.99-89.97 = 50.02\] and as a percent of 89.97 write
\[\frac{50.02}{89.97}=.556\] so answer is 55.6% rounded

Answer 2

This question was on a test of mine and I did it just like you did too. This is however the wrong answer. According to my test, the right answer is 35.73%. I guess you and I dont know math after all!