-40.33% is the change from 543 to 324
Calculation steps:
[( 324 - 543 ) ÷ 543] x 100 = -40.33%
Formula
Percentage change = [(324 - 543) / 543] x 100
Subtract the new number by the original number
324 - 543 = -219
-219 ÷ 543 = -0.40331491712707185
-0.40331491712707185 x 100 = -40.33%