-15.58% is the change from 539 to 455
Calculation steps:
[( 455 - 539 ) ÷ 539] x 100 = -15.58%
Formula
Percentage change = [(455 - 539) / 539] x 100
Subtract the new number by the original number
455 - 539 = -84
-84 ÷ 539 = -0.15584415584415584
-0.15584415584415584 x 100 = -15.58%