28.82% is the change from 517 to 666
Calculation steps:
[( 666 - 517 ) ÷ 517] x 100 = 28.82%
Formula
Percentage change = [(666 - 517) / 517] x 100
Subtract the new number by the original number
666 - 517 = 149
149 ÷ 517 = 0.28820116054158607
0.28820116054158607 x 100 = 28.82%