-21.03% is the change from 542 to 428
Calculation steps:
[( 428 - 542 ) ÷ 542] x 100 = -21.03%
Formula
Percentage change = [(428 - 542) / 542] x 100
Subtract the new number by the original number
428 - 542 = -114
-114 ÷ 542 = -0.21033210332103322
-0.21033210332103322 x 100 = -21.03%