Answer:
31% decrease
Step-by-step explanation:
To find the rate of increase or decrease, you need to plug this equation in.
(Greater Value - Lesser Value)/Old Value
In this situation, the greater value is 72, the lesser value is 50, and the old value is 72.
(72 - 50)/72 = 22/72
= 11/36
= 0.31 or 31% of a decrease.
