20.7% is the change from 517 to 624
Calculation steps:
[( 624 - 517 ) ÷ 517] x 100 = 20.7%
Formula
Percentage change = [(624 - 517) / 517] x 100
Subtract the new number by the original number
624 - 517 = 107
107 ÷ 517 = 0.20696324951644102
0.20696324951644102 x 100 = 20.7%