-89.94% is the change from 825 to 83
Calculation steps:
[( 83 - 825 ) ÷ 825] x 100 = -89.94%
Formula
Percentage change = [(83 - 825) / 825] x 100
Subtract the new number by the original number
83 - 825 = -742
-742 ÷ 825 = -0.8993939393939394
-0.8993939393939394 x 100 = -89.94%