-31.59% is the change from 858 to 587
Calculation steps:
[( 587 - 858 ) ÷ 858] x 100 = -31.59%
Formula
Percentage change = [(587 - 858) / 858] x 100
Subtract the new number by the original number
587 - 858 = -271
-271 ÷ 858 = -0.31585081585081587
-0.31585081585081587 x 100 = -31.59%