48.2% is the change from 305 to 452
Calculation steps:
[( 452 - 305 ) ÷ 305] x 100 = 48.2%
Formula
Percentage change = [(452 - 305) / 305] x 100
Subtract the new number by the original number
452 - 305 = 147
147 ÷ 305 = 0.4819672131147541
0.4819672131147541 x 100 = 48.2%