-9.72% is the change from 710 to 641
Calculation steps:
[( 641 - 710 ) ÷ 710] x 100 = -9.72%
Formula
Percentage change = [(641 - 710) / 710] x 100
Subtract the new number by the original number
641 - 710 = -69
-69 ÷ 710 = -0.09718309859154929
-0.09718309859154929 x 100 = -9.72%