-11.5% is the change from 539 to 477
Calculation steps:
[( 477 - 539 ) ÷ 539] x 100 = -11.5%
Formula
Percentage change = [(477 - 539) / 539] x 100
Subtract the new number by the original number
477 - 539 = -62
-62 ÷ 539 = -0.1150278293135436
-0.1150278293135436 x 100 = -11.5%