65.25% is the change from 518 to 856
Calculation steps:
[( 856 - 518 ) ÷ 518] x 100 = 65.25%
Formula
Percentage change = [(856 - 518) / 518] x 100
Subtract the new number by the original number
856 - 518 = 338
338 ÷ 518 = 0.6525096525096525
0.6525096525096525 x 100 = 65.25%