-75.29% is the change from 858 to 212
Calculation steps:
[( 212 - 858 ) ÷ 858] x 100 = -75.29%
Formula
Percentage change = [(212 - 858) / 858] x 100
Subtract the new number by the original number
212 - 858 = -646
-646 ÷ 858 = -0.752913752913753
-0.752913752913753 x 100 = -75.29%