50.1% is the change from 517 to 776
Calculation steps:
[( 776 - 517 ) ÷ 517] x 100 = 50.1%
Formula
Percentage change = [(776 - 517) / 517] x 100
Subtract the new number by the original number
776 - 517 = 259
259 ÷ 517 = 0.5009671179883946
0.5009671179883946 x 100 = 50.1%