-23.53% is the change from 833 to 637
Calculation steps:
[( 637 - 833 ) ÷ 833] x 100 = -23.53%
Formula
Percentage change = [(637 - 833) / 833] x 100
Subtract the new number by the original number
637 - 833 = -196
-196 ÷ 833 = -0.23529411764705882
-0.23529411764705882 x 100 = -23.53%