Credit card check digit calculation. by Chris J. Decker via YouTube Capture. Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Google+ (Opens in new window) Related See more Previous article Lease 4x… Next article Banks vs Credit Unions | Pros and Cons and Which is Better Infographic… Leave a Reply Cancel reply Your email address will not be published. Required fields are marked *Comment Name * Email * Website Notify me of follow-up comments by email. Notify me of new posts by email.