How to have barcode?

480 Country prefix

0573 manufacturer #

00 product code

Xxx check digit

Check digit:

1. Start the digit on the right of the # (excluding the check digit), sum all the alternating digit values reading right to left.

2. Multiply the result of #1 by 3

3. Sum all the remaining digit values.

4. Add results of #2 & #3.

5. Check digit is the smallest # which when added to the result of #4 produces a multiple of 10.

Example:

480057300101 C

#1 1+1+0+7+0+8 = 17

#2 17 x 3 = 51

#3 0+0+3+5+0+4 = 12

#4 51+12 = 63

#5 63+7 = 70, therefore, 7 is the check digit.