-89.58% is the change from 825 to 86
Calculation steps:
[( 86 - 825 ) ÷ 825] x 100 = -89.58%
Formula
Percentage change = [(86 - 825) / 825] x 100
Subtract the new number by the original number
86 - 825 = -739
-739 ÷ 825 = -0.8957575757575758
-0.8957575757575758 x 100 = -89.58%