Fifteen is increased to 27. What is the percent of change?

A. 55.6%

B. 37%

C. 44.4%

D. 80%

To find percent change,

first find the difference by subtracting the two numbers:

27 - 15 = 12

Now divide the difference by the starting number:

12 / 15 = 0.8

Multiply the decimal by 100 to get the percentage:

0.8 x 100 = 80%

The answer is D.