-7.14% is the change from 518 to 481
Calculation steps:
[( 481 - 518 ) ÷ 518] x 100 = -7.14%
Formula
Percentage change = [(481 - 518) / 518] x 100
Subtract the new number by the original number
481 - 518 = -37
-37 ÷ 518 = -0.07142857142857142
-0.07142857142857142 x 100 = -7.14%