100.22% is the change from 449 to 899
Calculation steps:
[( 899 - 449 ) ÷ 449] x 100 = 100.22%
Formula
Percentage change = [(899 - 449) / 449] x 100
Subtract the new number by the original number
899 - 449 = 450
450 ÷ 449 = 1.0022271714922049
1.0022271714922049 x 100 = 100.22%