-82.54% is the change from 819 to 143
Calculation steps:
[( 143 - 819 ) ÷ 819] x 100 = -82.54%
Formula
Percentage change = [(143 - 819) / 819] x 100
Subtract the new number by the original number
143 - 819 = -676
-676 ÷ 819 = -0.8253968253968254
-0.8253968253968254 x 100 = -82.54%