-31.94% is the change from 72 to 49
Calculation steps:
[( 49 - 72 ) ÷ 72] x 100 = -31.94%
Formula
Percentage change = [(49 - 72) / 72] x 100
Subtract the new number by the original number
49 - 72 = -23
-23 ÷ 72 = -0.3194444444444444
-0.3194444444444444 x 100 = -31.94%