12.47% is the change from 449 to 505
Calculation steps:
[( 505 - 449 ) ÷ 449] x 100 = 12.47%
Formula
Percentage change = [(505 - 449) / 449] x 100
Subtract the new number by the original number
505 - 449 = 56
56 ÷ 449 = 0.12472160356347439
0.12472160356347439 x 100 = 12.47%