-17.79% is the change from 534 to 439
Calculation steps:
[( 439 - 534 ) ÷ 534] x 100 = -17.79%
Formula
Percentage change = [(439 - 534) / 534] x 100
Subtract the new number by the original number
439 - 534 = -95
-95 ÷ 534 = -0.17790262172284643
-0.17790262172284643 x 100 = -17.79%