-28.04% is the change from 542 to 390
Calculation steps:
[( 390 - 542 ) ÷ 542] x 100 = -28.04%
Formula
Percentage change = [(390 - 542) / 542] x 100
Subtract the new number by the original number
390 - 542 = -152
-152 ÷ 542 = -0.28044280442804426
-0.28044280442804426 x 100 = -28.04%