-19.82% is the change from 787 to 631
Calculation steps:
[( 631 - 787 ) ÷ 787] x 100 = -19.82%
Formula
Percentage change = [(631 - 787) / 787] x 100
Subtract the new number by the original number
631 - 787 = -156
-156 ÷ 787 = -0.19822109275730623
-0.19822109275730623 x 100 = -19.82%