-7.42% is the change from 539 to 499
Calculation steps:
[( 499 - 539 ) ÷ 539] x 100 = -7.42%
Formula
Percentage change = [(499 - 539) / 539] x 100
Subtract the new number by the original number
499 - 539 = -40
-40 ÷ 539 = -0.07421150278293136
-0.07421150278293136 x 100 = -7.42%