-83.59% is the change from 847 to 139
Calculation steps:
[( 139 - 847 ) ÷ 847] x 100 = -83.59%
Formula
Percentage change = [(139 - 847) / 847] x 100
Subtract the new number by the original number
139 - 847 = -708
-708 ÷ 847 = -0.8358913813459268
-0.8358913813459268 x 100 = -83.59%