60.54% is the change from 517 to 830
Calculation steps:
[( 830 - 517 ) ÷ 517] x 100 = 60.54%
Formula
Percentage change = [(830 - 517) / 517] x 100
Subtract the new number by the original number
830 - 517 = 313
313 ÷ 517 = 0.6054158607350096
0.6054158607350096 x 100 = 60.54%