-55.25% is the change from 543 to 243
Calculation steps:
[( 243 - 543 ) ÷ 543] x 100 = -55.25%
Formula
Percentage change = [(243 - 543) / 543] x 100
Subtract the new number by the original number
243 - 543 = -300
-300 ÷ 543 = -0.5524861878453039
-0.5524861878453039 x 100 = -55.25%