102.9% is the change from 449 to 911
Calculation steps:
[( 911 - 449 ) ÷ 449] x 100 = 102.9%
Formula
Percentage change = [(911 - 449) / 449] x 100
Subtract the new number by the original number
911 - 449 = 462
462 ÷ 449 = 1.0289532293986636
1.0289532293986636 x 100 = 102.9%