-75.52% is the change from 858 to 210
Calculation steps:
[( 210 - 858 ) ÷ 858] x 100 = -75.52%
Formula
Percentage change = [(210 - 858) / 858] x 100
Subtract the new number by the original number
210 - 858 = -648
-648 ÷ 858 = -0.7552447552447552
-0.7552447552447552 x 100 = -75.52%