-15.87% is the change from 542 to 456
Calculation steps:
[( 456 - 542 ) ÷ 542] x 100 = -15.87%
Formula
Percentage change = [(456 - 542) / 542] x 100
Subtract the new number by the original number
456 - 542 = -86
-86 ÷ 542 = -0.15867158671586715
-0.15867158671586715 x 100 = -15.87%