-8.68% is the change from 691 to 631
Calculation steps:
[( 631 - 691 ) ÷ 691] x 100 = -8.68%
Formula
Percentage change = [(631 - 691) / 691] x 100
Subtract the new number by the original number
631 - 691 = -60
-60 ÷ 691 = -0.08683068017366136
-0.08683068017366136 x 100 = -8.68%