The Check Digit is "easy " to calculate .
This is how you do it ...
First the letters of the prefix ; they have the following value :
| A | 10 | H | 18 | O | 26 | V | 34 |
| B | 12 | I | 19 | P | 27 | W | 35 |
| C | 13 | J | 20 | Q | 28 | X | 36 |
| D | 14 | K | 21 | R | 29 | Y | 37 |
| E | 15 | L | 23 | S | 30 | Z | 38 |
| F | 16 | M | 24 | T | 31 | ||
| G | 17 | N | 25 | U | 32 |
Lets take a random container : MWCU 605978
The prefix MWCU has the value :
| LETTER : | M | W | C | U |
| VALUE : | 24 | 35 | 13 | 32 |
The value of the numbers are equal to the containernumber :
| NUMBER : | 6 | 0 | 5 | 9 | 7 | 8 |
| VALUE : | 6 | 0 | 5 | 9 | 7 | 8 |
Now make the following calculation :
| M | 24 | x | 1 | = | 24 |
| W | 35 | x | 2 | = | 70 |
| C | 13 | x | 4 | = | 52 |
| U | 32 | x | 8 | = | 256 |
| 6 | 6 | x | 16 | = | 96 |
| 0 | 0 | x | 32 | = | 0 |
| 5 | 5 | x | 64 | = | 320 |
| 9 | 9 | x | 128 | = | 1152 |
| 7 | 7 | x | 256 | = | 1792 |
| 8 | 8 | x | 512 | = | 4096 |
| ------- | |||||
| TOTAL | 7858 |
Now divide 7858 by 11 by long division :
The remainder is the Check Digit.
( if the remainder is 10, the check digit is 0 )
7858 | 11
77 714
---
15
11
---
48
44
---
4
Complete containernumber is : MWCU 605978 - 4
This is the one :
