-82.52% is the change from 818 to 143
Calculation steps:
[( 143 - 818 ) ÷ 818] x 100 = -82.52%
Formula
Percentage change = [(143 - 818) / 818] x 100
Subtract the new number by the original number
143 - 818 = -675
-675 ÷ 818 = -0.8251833740831296
-0.8251833740831296 x 100 = -82.52%