44.37% is the change from 311 to 449
Calculation steps:
[( 449 - 311 ) ÷ 311] x 100 = 44.37%
Formula
Percentage change = [(449 - 311) / 311] x 100
Subtract the new number by the original number
449 - 311 = 138
138 ÷ 311 = 0.4437299035369775
0.4437299035369775 x 100 = 44.37%