-17.01% is the change from 529 to 439
Calculation steps:
[( 439 - 529 ) ÷ 529] x 100 = -17.01%
Formula
Percentage change = [(439 - 529) / 529] x 100
Subtract the new number by the original number
439 - 529 = -90
-90 ÷ 529 = -0.17013232514177692
-0.17013232514177692 x 100 = -17.01%