-87.06% is the change from 850 to 110
Calculation steps:
[( 110 - 850 ) ÷ 850] x 100 = -87.06%
Formula
Percentage change = [(110 - 850) / 850] x 100
Subtract the new number by the original number
110 - 850 = -740
-740 ÷ 850 = -0.8705882352941177
-0.8705882352941177 x 100 = -87.06%