-27.7% is the change from 881 to 637
Calculation steps:
[( 637 - 881 ) ÷ 881] x 100 = -27.7%
Formula
Percentage change = [(637 - 881) / 881] x 100
Subtract the new number by the original number
637 - 881 = -244
-244 ÷ 881 = -0.27695800227014755
-0.27695800227014755 x 100 = -27.7%