-89.6% is the change from 827 to 86
Calculation steps:
[( 86 - 827 ) ÷ 827] x 100 = -89.6%
Formula
Percentage change = [(86 - 827) / 827] x 100
Subtract the new number by the original number
86 - 827 = -741
-741 ÷ 827 = -0.8960096735187424
-0.8960096735187424 x 100 = -89.6%