48.53% is the change from 307 to 456
Calculation steps:
[( 456 - 307 ) ÷ 307] x 100 = 48.53%
Formula
Percentage change = [(456 - 307) / 307] x 100
Subtract the new number by the original number
456 - 307 = 149
149 ÷ 307 = 0.48534201954397393
0.48534201954397393 x 100 = 48.53%