-27.99% is the change from 879 to 633
Calculation steps:
[( 633 - 879 ) ÷ 879] x 100 = -27.99%
Formula
Percentage change = [(633 - 879) / 879] x 100
Subtract the new number by the original number
633 - 879 = -246
-246 ÷ 879 = -0.27986348122866894
-0.27986348122866894 x 100 = -27.99%