-11.49% is the change from 609 to 539
Calculation steps:
[( 539 - 609 ) ÷ 609] x 100 = -11.49%
Formula
Percentage change = [(539 - 609) / 609] x 100
Subtract the new number by the original number
539 - 609 = -70
-70 ÷ 609 = -0.11494252873563218
-0.11494252873563218 x 100 = -11.49%