-9% is the change from 600 to 546
Calculation steps:
[( 546 - 600 ) ÷ 600] x 100 = -9%
Formula
Percentage change = [(546 - 600) / 600] x 100
Subtract the new number by the original number
546 - 600 = -54
-54 ÷ 600 = -0.09
-0.09 x 100 = -9%
Example