-16.05% is the change from 542 to 455
Calculation steps:
[( 455 - 542 ) ÷ 542] x 100 = -16.05%
Formula
Percentage change = [(455 - 542) / 542] x 100
Subtract the new number by the original number
455 - 542 = -87
-87 ÷ 542 = -0.16051660516605165
-0.16051660516605165 x 100 = -16.05%