47.1% is the change from 310 to 456
Calculation steps:
[( 456 - 310 ) ÷ 310] x 100 = 47.1%
Formula
Percentage change = [(456 - 310) / 310] x 100
Subtract the new number by the original number
456 - 310 = 146
146 ÷ 310 = 0.47096774193548385
0.47096774193548385 x 100 = 47.1%