-14.61% is the change from 609 to 520
Calculation steps:
[( 520 - 609 ) ÷ 609] x 100 = -14.61%
Formula
Percentage change = [(520 - 609) / 609] x 100
Subtract the new number by the original number
520 - 609 = -89
-89 ÷ 609 = -0.14614121510673234
-0.14614121510673234 x 100 = -14.61%