-9.65% is the change from 539 to 487
Calculation steps:
[( 487 - 539 ) ÷ 539] x 100 = -9.65%
Formula
Percentage change = [(487 - 539) / 539] x 100
Subtract the new number by the original number
487 - 539 = -52
-52 ÷ 539 = -0.09647495361781076
-0.09647495361781076 x 100 = -9.65%