46.62% is the change from 311 to 456
Calculation steps:
[( 456 - 311 ) ÷ 311] x 100 = 46.62%
Formula
Percentage change = [(456 - 311) / 311] x 100
Subtract the new number by the original number
456 - 311 = 145
145 ÷ 311 = 0.4662379421221865
0.4662379421221865 x 100 = 46.62%