46.95% is the change from 311 to 457
Calculation steps:
[( 457 - 311 ) ÷ 311] x 100 = 46.95%
Formula
Percentage change = [(457 - 311) / 311] x 100
Subtract the new number by the original number
457 - 311 = 146
146 ÷ 311 = 0.4694533762057878
0.4694533762057878 x 100 = 46.95%