-53.03% is the change from 858 to 403
Calculation steps:
[( 403 - 858 ) ÷ 858] x 100 = -53.03%
Formula
Percentage change = [(403 - 858) / 858] x 100
Subtract the new number by the original number
403 - 858 = -455
-455 ÷ 858 = -0.5303030303030303
-0.5303030303030303 x 100 = -53.03%