-82.4% is the change from 858 to 151
Calculation steps:
[( 151 - 858 ) ÷ 858] x 100 = -82.4%
Formula
Percentage change = [(151 - 858) / 858] x 100
Subtract the new number by the original number
151 - 858 = -707
-707 ÷ 858 = -0.824009324009324
-0.824009324009324 x 100 = -82.4%