-16.97% is the change from 542 to 450
Calculation steps:
[( 450 - 542 ) ÷ 542] x 100 = -16.97%
Formula
Percentage change = [(450 - 542) / 542] x 100
Subtract the new number by the original number
450 - 542 = -92
-92 ÷ 542 = -0.16974169741697417
-0.16974169741697417 x 100 = -16.97%