A dealer purchased an article at 3/4 of its list price and sold 50% more than the list price. Find his gain percent?

A dealer purchased an article at 3/4 of its list price and sold 50% more than the list price. Find his gain percent?

A. 75%
B. 50%
C. 100%
D. 80%
Explanation:
MP = 100
CP = 75
SP = 150
——
75 —- 75
100 —- ? => 100%