80.18% is the change from 449 to 809
Calculation steps:
[( 809 - 449 ) ÷ 449] x 100 = 80.18%
Formula
Percentage change = [(809 - 449) / 449] x 100
Subtract the new number by the original number
809 - 449 = 360
360 ÷ 449 = 0.8017817371937639
0.8017817371937639 x 100 = 80.18%