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Jerald Baker · Answer 1 · 2023-07-26T18:42:15+0000

The Universal product code (UPC) is an 11-digit set of numbers and the check digit is located to the far right..

To calculate this 12th digit (the check digit), follow the stesp shown;

$\begin{gathered} (1)\text{ Multiply each of the 1st, 3rd, 5th and 7th digits by }3\text{ and then add the results all together} \\ (0*3)+(9*3)+(0*3)+(2*3) \\ 0+27+0+6 \\ 33 \\ \text{Take the remaining digits (not included above) and }add\text{ them to the total (33)} \\ 0+8+0+3+7+9+8=35 \\ 35+33=68 \\ \text{Next you divide this new total by 10 } \\ (68)/(10) \\ 6\text{ rem 8} \\ To\text{ get the check digit, you now subtract the remainder (8) from 10} \\ Check\text{ digit=10-8} \\ \text{Check digit=2} \end{gathered}$

The calculations show that the check digit is 2.

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