-8.3% is the change from 518 to 475
Calculation steps:
[( 475 - 518 ) ÷ 518] x 100 = -8.3%
Formula
Percentage change = [(475 - 518) / 518] x 100
Subtract the new number by the original number
475 - 518 = -43
-43 ÷ 518 = -0.08301158301158301
-0.08301158301158301 x 100 = -8.3%