-9.86% is the change from 720 to 649
Calculation steps:
[( 649 - 720 ) ÷ 720] x 100 = -9.86%
Formula
Percentage change = [(649 - 720) / 720] x 100
Subtract the new number by the original number
649 - 720 = -71
-71 ÷ 720 = -0.09861111111111111
-0.09861111111111111 x 100 = -9.86%