-82.36% is the change from 856 to 151
Calculation steps:
[( 151 - 856 ) ÷ 856] x 100 = -82.36%
Formula
Percentage change = [(151 - 856) / 856] x 100
Subtract the new number by the original number
151 - 856 = -705
-705 ÷ 856 = -0.8235981308411215
-0.8235981308411215 x 100 = -82.36%