EAN 8 check digit formula?

I can find boat loads of EAN 13 check digit calculators but no EAN 8...can anyone help me out with one?

Found this one...=MOD(-SUM(MID(A1&0,{1,3,5,7;2,4,6,8},1)*{3;1}),10)

Found out its a 8 digit code, with check digit so not EAN 8. EAN 8 only has 7 digits with 1 check digit.

Does anyone have a formula for 8 digit with 1 check digit (total 9)


Thanks!