19.11% is the change from 518 to 617
Calculation steps:
[( 617 - 518 ) ÷ 518] x 100 = 19.11%
Formula
Percentage change = [(617 - 518) / 518] x 100
Subtract the new number by the original number
617 - 518 = 99
99 ÷ 518 = 0.19111969111969113
0.19111969111969113 x 100 = 19.11%