41.48% is the change from 311 to 440
Calculation steps:
[( 440 - 311 ) ÷ 311] x 100 = 41.48%
Formula
Percentage change = [(440 - 311) / 311] x 100
Subtract the new number by the original number
440 - 311 = 129
129 ÷ 311 = 0.41479099678456594
0.41479099678456594 x 100 = 41.48%