3.28% is the change from 518 to 535
Calculation steps:
[( 535 - 518 ) ÷ 518] x 100 = 3.28%
Formula
Percentage change = [(535 - 518) / 518] x 100
Subtract the new number by the original number
535 - 518 = 17
17 ÷ 518 = 0.032818532818532815
0.032818532818532815 x 100 = 3.28%