Aproduct goes from $25 to $27 in price.

the product has a percent increase of

a. 7.4%
b. 8%
c. 74%
d. 80%

25*4=100
2*4=8
Answer is B. 80%

Set up an equation similar to how you would do the first problem 
(original price) x (percent) = (final price) 
25 x (percent) = 27 
percent = 27/25 
percent = 1.08 
It is 1.08 times greater, which is 108%, so there is an 8% increase, and the answer is B