-85% is the change from 720 to 108
Calculation steps:
[( 108 - 720 ) ÷ 720] x 100 = -85%
Formula
Percentage change = [(108 - 720) / 720] x 100
Subtract the new number by the original number
108 - 720 = -612
-612 ÷ 720 = -0.85
-0.85 x 100 = -85%
Example