-2.15% is the change from 558 to 546
Calculation steps:
[( 546 - 558 ) ÷ 558] x 100 = -2.15%
Formula
Percentage change = [(546 - 558) / 558] x 100
Subtract the new number by the original number
546 - 558 = -12
-12 ÷ 558 = -0.021505376344086023
-0.021505376344086023 x 100 = -2.15%