-75.41% is the change from 858 to 211
Calculation steps:
[( 211 - 858 ) ÷ 858] x 100 = -75.41%
Formula
Percentage change = [(211 - 858) / 858] x 100
Subtract the new number by the original number
211 - 858 = -647
-647 ÷ 858 = -0.754079254079254
-0.754079254079254 x 100 = -75.41%