-52.51% is the change from 518 to 246
Calculation steps:
[( 246 - 518 ) ÷ 518] x 100 = -52.51%
Formula
Percentage change = [(246 - 518) / 518] x 100
Subtract the new number by the original number
246 - 518 = -272
-272 ÷ 518 = -0.525096525096525
-0.525096525096525 x 100 = -52.51%