104.26% is the change from 305 to 623
Calculation steps:
[( 623 - 305 ) ÷ 305] x 100 = 104.26%
Formula
Percentage change = [(623 - 305) / 305] x 100
Subtract the new number by the original number
623 - 305 = 318
318 ÷ 305 = 1.042622950819672
1.042622950819672 x 100 = 104.26%