-52.95% is the change from 542 to 255
Calculation steps:
[( 255 - 542 ) ÷ 542] x 100 = -52.95%
Formula
Percentage change = [(255 - 542) / 542] x 100
Subtract the new number by the original number
255 - 542 = -287
-287 ÷ 542 = -0.5295202952029521
-0.5295202952029521 x 100 = -52.95%