-7.56% is the change from 542 to 501
Calculation steps:
[( 501 - 542 ) ÷ 542] x 100 = -7.56%
Formula
Percentage change = [(501 - 542) / 542] x 100
Subtract the new number by the original number
501 - 542 = -41
-41 ÷ 542 = -0.07564575645756458
-0.07564575645756458 x 100 = -7.56%