-89.84% is the change from 827 to 84
Calculation steps:
[( 84 - 827 ) ÷ 827] x 100 = -89.84%
Formula
Percentage change = [(84 - 827) / 827] x 100
Subtract the new number by the original number
84 - 827 = -743
-743 ÷ 827 = -0.898428053204353
-0.898428053204353 x 100 = -89.84%