-40.52% is the change from 543 to 323
Calculation steps:
[( 323 - 543 ) ÷ 543] x 100 = -40.52%
Formula
Percentage change = [(323 - 543) / 543] x 100
Subtract the new number by the original number
323 - 543 = -220
-220 ÷ 543 = -0.40515653775322286
-0.40515653775322286 x 100 = -40.52%