-9.35% is the change from 599 to 543
Calculation steps:
[( 543 - 599 ) ÷ 599] x 100 = -9.35%
Formula
Percentage change = [(543 - 599) / 599] x 100
Subtract the new number by the original number
543 - 599 = -56
-56 ÷ 599 = -0.09348914858096828
-0.09348914858096828 x 100 = -9.35%