Calculate the Check Digit
The Check Digit is easy to calculate. This is how you do it.
The letters of the prefix have a certain value:
So (for example) prefix MWCU is:
The value of the numbers is equal to the numbers of the container number.
Now calculate like this:
The total, in this case 7858 is divided by 11 (Long Division) and the remainder is the Check Digit.
