20.5% is the change from 517 to 623
Calculation steps:
[( 623 - 517 ) ÷ 517] x 100 = 20.5%
Formula
Percentage change = [(623 - 517) / 517] x 100
Subtract the new number by the original number
623 - 517 = 106
106 ÷ 517 = 0.20502901353965183
0.20502901353965183 x 100 = 20.5%