54.1% is the change from 305 to 470
Calculation steps:
[( 470 - 305 ) ÷ 305] x 100 = 54.1%
Formula
Percentage change = [(470 - 305) / 305] x 100
Subtract the new number by the original number
470 - 305 = 165
165 ÷ 305 = 0.5409836065573771
0.5409836065573771 x 100 = 54.1%