-4.27% is the change from 820 to 785
Calculation steps:
[( 785 - 820 ) ÷ 820] x 100 = -4.27%
Formula
Percentage change = [(785 - 820) / 820] x 100
Subtract the new number by the original number
785 - 820 = -35
-35 ÷ 820 = -0.042682926829268296
-0.042682926829268296 x 100 = -4.27%