-3.96% is the change from 657 to 631
Calculation steps:
[( 631 - 657 ) ÷ 657] x 100 = -3.96%
Formula
Percentage change = [(631 - 657) / 657] x 100
Subtract the new number by the original number
631 - 657 = -26
-26 ÷ 657 = -0.0395738203957382
-0.0395738203957382 x 100 = -3.96%