-44.02% is the change from 518 to 290
Calculation steps:
[( 290 - 518 ) ÷ 518] x 100 = -44.02%
Formula
Percentage change = [(290 - 518) / 518] x 100
Subtract the new number by the original number
290 - 518 = -228
-228 ÷ 518 = -0.44015444015444016
-0.44015444015444016 x 100 = -44.02%