-94.27% is the change from 820 to 47
Calculation steps:
[( 47 - 820 ) ÷ 820] x 100 = -94.27%
Formula
Percentage change = [(47 - 820) / 820] x 100
Subtract the new number by the original number
47 - 820 = -773
-773 ÷ 820 = -0.9426829268292682
-0.9426829268292682 x 100 = -94.27%