-18.45% is the change from 542 to 442
Calculation steps:
[( 442 - 542 ) ÷ 542] x 100 = -18.45%
Formula
Percentage change = [(442 - 542) / 542] x 100
Subtract the new number by the original number
442 - 542 = -100
-100 ÷ 542 = -0.18450184501845018
-0.18450184501845018 x 100 = -18.45%