-8.3% is the change from 542 to 497
Calculation steps:
[( 497 - 542 ) ÷ 542] x 100 = -8.3%
Formula
Percentage change = [(497 - 542) / 542] x 100
Subtract the new number by the original number
497 - 542 = -45
-45 ÷ 542 = -0.08302583025830258
-0.08302583025830258 x 100 = -8.3%