-99.42% is the change from 858 to 5
Calculation steps:
[( 5 - 858 ) ÷ 858] x 100 = -99.42%
Formula
Percentage change = [(5 - 858) / 858] x 100
Subtract the new number by the original number
5 - 858 = -853
-853 ÷ 858 = -0.9941724941724942
-0.9941724941724942 x 100 = -99.42%