27.99% is the change from 518 to 663
Calculation steps:
[( 663 - 518 ) ÷ 518] x 100 = 27.99%
Formula
Percentage change = [(663 - 518) / 518] x 100
Subtract the new number by the original number
663 - 518 = 145
145 ÷ 518 = 0.2799227799227799
0.2799227799227799 x 100 = 27.99%