-5.3% is the change from 509 to 482
Calculation steps:
[( 482 - 509 ) ÷ 509] x 100 = -5.3%
Formula
Percentage change = [(482 - 509) / 509] x 100
Subtract the new number by the original number
482 - 509 = -27
-27 ÷ 509 = -0.05304518664047151
-0.05304518664047151 x 100 = -5.3%