-9.04% is the change from 542 to 493
Calculation steps:
[( 493 - 542 ) ÷ 542] x 100 = -9.04%
Formula
Percentage change = [(493 - 542) / 542] x 100
Subtract the new number by the original number
493 - 542 = -49
-49 ÷ 542 = -0.09040590405904059
-0.09040590405904059 x 100 = -9.04%