-12.78% is the change from 712 to 621
Calculation steps:
[( 621 - 712 ) ÷ 712] x 100 = -12.78%
Formula
Percentage change = [(621 - 712) / 712] x 100
Subtract the new number by the original number
621 - 712 = -91
-91 ÷ 712 = -0.12780898876404495
-0.12780898876404495 x 100 = -12.78%