-82.96% is the change from 839 to 143
Calculation steps:
[( 143 - 839 ) ÷ 839] x 100 = -82.96%
Formula
Percentage change = [(143 - 839) / 839] x 100
Subtract the new number by the original number
143 - 839 = -696
-696 ÷ 839 = -0.8295589988081049
-0.8295589988081049 x 100 = -82.96%