-2% is the change from 449 to 440
Calculation steps:
[( 440 - 449 ) ÷ 449] x 100 = -2%
Formula
Percentage change = [(440 - 449) / 449] x 100
Subtract the new number by the original number
440 - 449 = -9
-9 ÷ 449 = -0.0200445434298441
-0.0200445434298441 x 100 = -2%