-51.52% is the change from 825 to 400
Calculation steps:
[( 400 - 825 ) ÷ 825] x 100 = -51.52%
Formula
Percentage change = [(400 - 825) / 825] x 100
Subtract the new number by the original number
400 - 825 = -425
-425 ÷ 825 = -0.5151515151515151
-0.5151515151515151 x 100 = -51.52%