-55.73% is the change from 323 to 143
Calculation steps:
[( 143 - 323 ) ÷ 323] x 100 = -55.73%
Formula
Percentage change = [(143 - 323) / 323] x 100
Subtract the new number by the original number
143 - 323 = -180
-180 ÷ 323 = -0.5572755417956656
-0.5572755417956656 x 100 = -55.73%