12.69% is the change from 449 to 506
Calculation steps:
[( 506 - 449 ) ÷ 449] x 100 = 12.69%
Formula
Percentage change = [(506 - 449) / 449] x 100
Subtract the new number by the original number
506 - 449 = 57
57 ÷ 449 = 0.12694877505567928
0.12694877505567928 x 100 = 12.69%