-95.86% is the change from 821 to 34
Calculation steps:
[( 34 - 821 ) ÷ 821] x 100 = -95.86%
Formula
Percentage change = [(34 - 821) / 821] x 100
Subtract the new number by the original number
34 - 821 = -787
-787 ÷ 821 = -0.9585870889159561
-0.9585870889159561 x 100 = -95.86%