-8.82% is the change from 612 to 558
Calculation steps:
[( 558 - 612 ) ÷ 612] x 100 = -8.82%
Formula
Percentage change = [(558 - 612) / 612] x 100
Subtract the new number by the original number
558 - 612 = -54
-54 ÷ 612 = -0.08823529411764706
-0.08823529411764706 x 100 = -8.82%