-8.19% is the change from 720 to 661
Calculation steps:
[( 661 - 720 ) ÷ 720] x 100 = -8.19%
Formula
Percentage change = [(661 - 720) / 720] x 100
Subtract the new number by the original number
661 - 720 = -59
-59 ÷ 720 = -0.08194444444444444
-0.08194444444444444 x 100 = -8.19%