-11.79% is the change from 509 to 449
Calculation steps:
[( 449 - 509 ) ÷ 509] x 100 = -11.79%
Formula
Percentage change = [(449 - 509) / 509] x 100
Subtract the new number by the original number
449 - 509 = -60
-60 ÷ 509 = -0.11787819253438114
-0.11787819253438114 x 100 = -11.79%