-24.28% is the change from 449 to 340
Calculation steps:
[( 340 - 449 ) ÷ 449] x 100 = -24.28%
Formula
Percentage change = [(340 - 449) / 449] x 100
Subtract the new number by the original number
340 - 449 = -109
-109 ÷ 449 = -0.24276169265033407
-0.24276169265033407 x 100 = -24.28%