50.12% is the change from 415 to 623
Calculation steps:
[( 623 - 415 ) ÷ 415] x 100 = 50.12%
Formula
Percentage change = [(623 - 415) / 415] x 100
Subtract the new number by the original number
623 - 415 = 208
208 ÷ 415 = 0.5012048192771085
0.5012048192771085 x 100 = 50.12%