-4.68% is the change from 449 to 428
Calculation steps:
[( 428 - 449 ) ÷ 449] x 100 = -4.68%
Formula
Percentage change = [(428 - 449) / 449] x 100
Subtract the new number by the original number
428 - 449 = -21
-21 ÷ 449 = -0.0467706013363029
-0.0467706013363029 x 100 = -4.68%