-1.16% is the change from 518 to 512
Calculation steps:
[( 512 - 518 ) ÷ 518] x 100 = -1.16%
Formula
Percentage change = [(512 - 518) / 518] x 100
Subtract the new number by the original number
512 - 518 = -6
-6 ÷ 518 = -0.011583011583011582
-0.011583011583011582 x 100 = -1.16%