-82.87% is the change from 858 to 147
Calculation steps:
[( 147 - 858 ) ÷ 858] x 100 = -82.87%
Formula
Percentage change = [(147 - 858) / 858] x 100
Subtract the new number by the original number
147 - 858 = -711
-711 ÷ 858 = -0.8286713286713286
-0.8286713286713286 x 100 = -82.87%