44.05% is the change from 311 to 448
Calculation steps:
[( 448 - 311 ) ÷ 311] x 100 = 44.05%
Formula
Percentage change = [(448 - 311) / 311] x 100
Subtract the new number by the original number
448 - 311 = 137
137 ÷ 311 = 0.4405144694533762
0.4405144694533762 x 100 = 44.05%