-80.76% is the change from 847 to 163
Calculation steps:
[( 163 - 847 ) ÷ 847] x 100 = -80.76%
Formula
Percentage change = [(163 - 847) / 847] x 100
Subtract the new number by the original number
163 - 847 = -684
-684 ÷ 847 = -0.807556080283353
-0.807556080283353 x 100 = -80.76%