Base 10 check Diget

[Richard Tartaglia]

Windows xp FilePro 5.13
 
I am printing an OCR A scan line with a witha mod 10; reading right to left, with a 2,1,2,1 weight pattern, using the Sum of the Digits method to calculate the check digit.
 
I know I have written a table to do this somewhere doing all the adding calculations to get the check digit. 
 
I think I remember someone posting that there was something in filepro that calculated the check digit for you, just feed it the number. 
 
Is there such an animal.
 
Thanks 
 
Happy new year 
 
Rich  
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