-94.17% is the change from 858 to 50
Calculation steps:
[( 50 - 858 ) ÷ 858] x 100 = -94.17%
Formula
Percentage change = [(50 - 858) / 858] x 100
Subtract the new number by the original number
50 - 858 = -808
-808 ÷ 858 = -0.9417249417249417
-0.9417249417249417 x 100 = -94.17%