-20.36% is the change from 825 to 657
Calculation steps:
[( 657 - 825 ) ÷ 825] x 100 = -20.36%
Formula
Percentage change = [(657 - 825) / 825] x 100
Subtract the new number by the original number
657 - 825 = -168
-168 ÷ 825 = -0.20363636363636364
-0.20363636363636364 x 100 = -20.36%