-16.38% is the change from 525 to 439
Calculation steps:
[( 439 - 525 ) ÷ 525] x 100 = -16.38%
Formula
Percentage change = [(439 - 525) / 525] x 100
Subtract the new number by the original number
439 - 525 = -86
-86 ÷ 525 = -0.16380952380952382
-0.16380952380952382 x 100 = -16.38%