18.18% is the change from 517 to 611
Calculation steps:
[( 611 - 517 ) ÷ 517] x 100 = 18.18%
Formula
Percentage change = [(611 - 517) / 517] x 100
Subtract the new number by the original number
611 - 517 = 94
94 ÷ 517 = 0.18181818181818182
0.18181818181818182 x 100 = 18.18%