-85.6% is the change from 847 to 122
Calculation steps:
[( 122 - 847 ) ÷ 847] x 100 = -85.6%
Formula
Percentage change = [(122 - 847) / 847] x 100
Subtract the new number by the original number
122 - 847 = -725
-725 ÷ 847 = -0.8559622195985832
-0.8559622195985832 x 100 = -85.6%