-4.83% is the change from 518 to 493
Calculation steps:
[( 493 - 518 ) ÷ 518] x 100 = -4.83%
Formula
Percentage change = [(493 - 518) / 518] x 100
Subtract the new number by the original number
493 - 518 = -25
-25 ÷ 518 = -0.04826254826254826
-0.04826254826254826 x 100 = -4.83%