-83.12% is the change from 847 to 143
Calculation steps:
[( 143 - 847 ) ÷ 847] x 100 = -83.12%
Formula
Percentage change = [(143 - 847) / 847] x 100
Subtract the new number by the original number
143 - 847 = -704
-704 ÷ 847 = -0.8311688311688312
-0.8311688311688312 x 100 = -83.12%