-53.62% is the change from 539 to 250
Calculation steps:
[( 250 - 539 ) ÷ 539] x 100 = -53.62%
Formula
Percentage change = [(250 - 539) / 539] x 100
Subtract the new number by the original number
250 - 539 = -289
-289 ÷ 539 = -0.536178107606679
-0.536178107606679 x 100 = -53.62%