-12.8% is the change from 539 to 470
Calculation steps:
[( 470 - 539 ) ÷ 539] x 100 = -12.8%
Formula
Percentage change = [(470 - 539) / 539] x 100
Subtract the new number by the original number
470 - 539 = -69
-69 ÷ 539 = -0.1280148423005566
-0.1280148423005566 x 100 = -12.8%