-31.7% is the change from 858 to 586
Calculation steps:
[( 586 - 858 ) ÷ 858] x 100 = -31.7%
Formula
Percentage change = [(586 - 858) / 858] x 100
Subtract the new number by the original number
586 - 858 = -272
-272 ÷ 858 = -0.317016317016317
-0.317016317016317 x 100 = -31.7%