-7% is the change from 600 to 558
Calculation steps:
[( 558 - 600 ) ÷ 600] x 100 = -7%
Formula
Percentage change = [(558 - 600) / 600] x 100
Subtract the new number by the original number
558 - 600 = -42
-42 ÷ 600 = -0.07
-0.07 x 100 = -7%
Example