-25.21% is the change from 587 to 439
Calculation steps:
[( 439 - 587 ) ÷ 587] x 100 = -25.21%
Formula
Percentage change = [(439 - 587) / 587] x 100
Subtract the new number by the original number
439 - 587 = -148
-148 ÷ 587 = -0.252129471890971
-0.252129471890971 x 100 = -25.21%