-4.98% is the change from 542 to 515
Calculation steps:
[( 515 - 542 ) ÷ 542] x 100 = -4.98%
Formula
Percentage change = [(515 - 542) / 542] x 100
Subtract the new number by the original number
515 - 542 = -27
-27 ÷ 542 = -0.04981549815498155
-0.04981549815498155 x 100 = -4.98%