-87.78% is the change from 720 to 88
Calculation steps:
[( 88 - 720 ) ÷ 720] x 100 = -87.78%
Formula
Percentage change = [(88 - 720) / 720] x 100
Subtract the new number by the original number
88 - 720 = -632
-632 ÷ 720 = -0.8777777777777778
-0.8777777777777778 x 100 = -87.78%