-5.19% is the change from 539 to 511
Calculation steps:
[( 511 - 539 ) ÷ 539] x 100 = -5.19%
Formula
Percentage change = [(511 - 539) / 539] x 100
Subtract the new number by the original number
511 - 539 = -28
-28 ÷ 539 = -0.05194805194805195
-0.05194805194805195 x 100 = -5.19%