-27.32% is the change from 871 to 633
Calculation steps:
[( 633 - 871 ) ÷ 871] x 100 = -27.32%
Formula
Percentage change = [(633 - 871) / 871] x 100
Subtract the new number by the original number
633 - 871 = -238
-238 ÷ 871 = -0.27324913892078073
-0.27324913892078073 x 100 = -27.32%