-28.05% is the change from 877 to 631
Calculation steps:
[( 631 - 877 ) ÷ 877] x 100 = -28.05%
Formula
Percentage change = [(631 - 877) / 877] x 100
Subtract the new number by the original number
631 - 877 = -246
-246 ÷ 877 = -0.2805017103762828
-0.2805017103762828 x 100 = -28.05%