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SATO M-5900RV Operator and Technical Reference Manual
Page B-6
Appendix B. Bar Code Specifications
PN 9001081
Rev. C
Calculating the
Mod 10 Check Digit
If you wish to encode the UPC-A data "01234567890", follow these
steps to find the correct check digit.
1. First add all the numbers in the ODD positions.
i.e., 0 + 2 + 4 + 6 + 8 + 0 = 20
2. Multiply the result of Step 1 by 3.
i.e., 20 x 3 = 60
3. Add all the numbers in the EVEN positions.
i.e., 1+ 3 + 5 + 7 + 9 = 25
4. Add the result of Step 2 to that of Step 3.
i.e., 60 + 25 = 85
5. Subtract the result of Step 4 from the next highest increment of 10.
i.e., 90 - 85 = 5
6. The correct Modulo 10 check digit for the 11 digit string
"01234567890" is 5.
UPC-A/EAN-13 (Cont)
DDO
024680
NEVE
13579 DC