39.46% is the change from 517 to 721
Calculation steps:
[( 721 - 517 ) ÷ 517] x 100 = 39.46%
Formula
Percentage change = [(721 - 517) / 517] x 100
Subtract the new number by the original number
721 - 517 = 204
204 ÷ 517 = 0.3945841392649903
0.3945841392649903 x 100 = 39.46%