-2.68% is the change from 523 to 509
Calculation steps:
[( 509 - 523 ) ÷ 523] x 100 = -2.68%
Formula
Percentage change = [(509 - 523) / 523] x 100
Subtract the new number by the original number
509 - 523 = -14
-14 ÷ 523 = -0.02676864244741874
-0.02676864244741874 x 100 = -2.68%