-83.41% is the change from 850 to 141
Calculation steps:
[( 141 - 850 ) ÷ 850] x 100 = -83.41%
Formula
Percentage change = [(141 - 850) / 850] x 100
Subtract the new number by the original number
141 - 850 = -709
-709 ÷ 850 = -0.8341176470588235
-0.8341176470588235 x 100 = -83.41%