-27.73% is the change from 880 to 636
Calculation steps:
[( 636 - 880 ) ÷ 880] x 100 = -27.73%
Formula
Percentage change = [(636 - 880) / 880] x 100
Subtract the new number by the original number
636 - 880 = -244
-244 ÷ 880 = -0.2772727272727273
-0.2772727272727273 x 100 = -27.73%