-22.79% is the change from 825 to 637
Calculation steps:
[( 637 - 825 ) ÷ 825] x 100 = -22.79%
Formula
Percentage change = [(637 - 825) / 825] x 100
Subtract the new number by the original number
637 - 825 = -188
-188 ÷ 825 = -0.22787878787878788
-0.22787878787878788 x 100 = -22.79%