-0.55% is the change from 542 to 539
Calculation steps:
[( 539 - 542 ) ÷ 542] x 100 = -0.55%
Formula
Percentage change = [(539 - 542) / 542] x 100
Subtract the new number by the original number
539 - 542 = -3
-3 ÷ 542 = -0.005535055350553505
-0.005535055350553505 x 100 = -0.55%