-81.94% is the change from 847 to 153
Calculation steps:
[( 153 - 847 ) ÷ 847] x 100 = -81.94%
Formula
Percentage change = [(153 - 847) / 847] x 100
Subtract the new number by the original number
153 - 847 = -694
-694 ÷ 847 = -0.8193624557260921
-0.8193624557260921 x 100 = -81.94%