-27.83% is the change from 539 to 389
Calculation steps:
[( 389 - 539 ) ÷ 539] x 100 = -27.83%
Formula
Percentage change = [(389 - 539) / 539] x 100
Subtract the new number by the original number
389 - 539 = -150
-150 ÷ 539 = -0.2782931354359926
-0.2782931354359926 x 100 = -27.83%