-45.83% is the change from 72 to 39
Calculation steps:
[( 39 - 72 ) ÷ 72] x 100 = -45.83%
Formula
Percentage change = [(39 - 72) / 72] x 100
Subtract the new number by the original number
39 - 72 = -33
-33 ÷ 72 = -0.4583333333333333
-0.4583333333333333 x 100 = -45.83%