-30.91% is the change from 922 to 637
Calculation steps:
[( 637 - 922 ) ÷ 922] x 100 = -30.91%
Formula
Percentage change = [(637 - 922) / 922] x 100
Subtract the new number by the original number
637 - 922 = -285
-285 ÷ 922 = -0.3091106290672451
-0.3091106290672451 x 100 = -30.91%