-12.3% is the change from 618 to 542
Calculation steps:
[( 542 - 618 ) ÷ 618] x 100 = -12.3%
Formula
Percentage change = [(542 - 618) / 618] x 100
Subtract the new number by the original number
542 - 618 = -76
-76 ÷ 618 = -0.12297734627831715
-0.12297734627831715 x 100 = -12.3%