Suppose a certain item used to sell for 30 cents per pound, and you see that it’s been marked up to 45 cents per pound. What is the percent increase?
A. 10%
B. 25%
C. 33%
D. 50%
The difference between 30 and 45 is 15
15/30 = 1/2, so the percent increase is 50%, or D
+1982 
