-63.05% is the change from 858 to 317
Calculation steps:
[( 317 - 858 ) ÷ 858] x 100 = -63.05%
Formula
Percentage change = [(317 - 858) / 858] x 100
Subtract the new number by the original number
317 - 858 = -541
-541 ÷ 858 = -0.6305361305361306
-0.6305361305361306 x 100 = -63.05%