-24.83% is the change from 858 to 645
Calculation steps:
[( 645 - 858 ) ÷ 858] x 100 = -24.83%
Formula
Percentage change = [(645 - 858) / 858] x 100
Subtract the new number by the original number
645 - 858 = -213
-213 ÷ 858 = -0.24825174825174826
-0.24825174825174826 x 100 = -24.83%