Percent of Increase/Decrease

To find the percent of increase think: what part of the starting number increased
OR follow the formula
Difference / original number
EX 50 to 75 = 25 diff/50 starting #
25/50 = 1/2 = 50%
EX 75 to 50 = 25 diff/75 starting #
25/75 = 1/3 = 33.3%