-85.87% is the change from 821 to 116
Calculation steps:
[( 116 - 821 ) ÷ 821] x 100 = -85.87%
Formula
Percentage change = [(116 - 821) / 821] x 100
Subtract the new number by the original number
116 - 821 = -705
-705 ÷ 821 = -0.8587088915956151
-0.8587088915956151 x 100 = -85.87%