Dear all,

I have the following serial numbers:

41078928128
41078928136
41078928144
41078928151
41078928169
41078928177
41078928185
41078928193
41078928201

The last digit is a check digit. How can I get the formula /algorithm
to get the check digit? So that if I have the serial numbers I can add
the check digit with it?

Thanks