19.92% is the change from 517 to 620
Calculation steps:
[( 620 - 517 ) ÷ 517] x 100 = 19.92%
Formula
Percentage change = [(620 - 517) / 517] x 100
Subtract the new number by the original number
620 - 517 = 103
103 ÷ 517 = 0.19922630560928434
0.19922630560928434 x 100 = 19.92%