-42.44% is the change from 542 to 312
Calculation steps:
[( 312 - 542 ) ÷ 542] x 100 = -42.44%
Formula
Percentage change = [(312 - 542) / 542] x 100
Subtract the new number by the original number
312 - 542 = -230
-230 ÷ 542 = -0.42435424354243545
-0.42435424354243545 x 100 = -42.44%