-7.53% is the change from 518 to 479
Calculation steps:
[( 479 - 518 ) ÷ 518] x 100 = -7.53%
Formula
Percentage change = [(479 - 518) / 518] x 100
Subtract the new number by the original number
479 - 518 = -39
-39 ÷ 518 = -0.07528957528957529
-0.07528957528957529 x 100 = -7.53%