63.28% is the change from 305 to 498
Calculation steps:
[( 498 - 305 ) ÷ 305] x 100 = 63.28%
Formula
Percentage change = [(498 - 305) / 305] x 100
Subtract the new number by the original number
498 - 305 = 193
193 ÷ 305 = 0.6327868852459017
0.6327868852459017 x 100 = 63.28%