-4.45% is the change from 539 to 515
Calculation steps:
[( 515 - 539 ) ÷ 539] x 100 = -4.45%
Formula
Percentage change = [(515 - 539) / 539] x 100
Subtract the new number by the original number
515 - 539 = -24
-24 ÷ 539 = -0.04452690166975881
-0.04452690166975881 x 100 = -4.45%