Question 4194: Jason got a 7 5 on a math test. He was allowed to go to the math lab and take a retest. He increased his score to 84. What was the percent of increase? Answer by rapaljer(4667) (Show Source):
Percent of increase = which reduces to . Percent means "per hundred", so it's helpful to get the denominator of the fraction up to 100. You can do that by multiplying numerator and denominator by 4:
or 12 %.