-23.83% is the change from 449 to 342
Calculation steps:
[( 342 - 449 ) ÷ 449] x 100 = -23.83%
Formula
Percentage change = [(342 - 449) / 449] x 100
Subtract the new number by the original number
342 - 449 = -107
-107 ÷ 449 = -0.2383073496659243
-0.2383073496659243 x 100 = -23.83%