Question

I need help understanding this

Answer 1

Answer:

percent increase = 12.5%

Step-by-step explanation:

percent change = (new value - old value)/(old value) * 100%

percent change = (81 - 72)/(72) * 100%

percent change = 9/72 * 100%

percent change = 0.125 * 100% = 12.5%

Since the percent change is a positive number, it is a percent increase.