.
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:
|
A |
10 |
G |
17 |
M |
24 |
S |
30 |
Y |
37 |
|
B |
12 |
H |
18 |
N |
25 |
T |
31 |
Z |
38 |
|
C |
13 |
I |
19 |
O |
26 |
U |
32 |
|
|
|
D |
14 |
J |
20 |
P |
27 |
V |
34 |
|
|
|
E |
15 |
K |
21 |
Q |
28 |
W |
35 |
|
|
|
F |
16 |
L |
23 |
R |
29 |
X |
36 |
|
|
So (for example) prefix MWCU is:
|
Letter |
M |
W |
C |
U |
|
Value |
24 |
35 |
13 |
32 |
The value of the numbers is equal to the numbers of the container number.
|
Number |
6 |
0 |
5 |
9 |
7 |
8 |
|
Value |
6 |
0 |
5 |
9 |
7 |
8 |
Now calculate like this:
|
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 |
|
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|
|
TOTAL |
7858 |
The total, in this case 7858 is divided by 11 (Long Division) and the remainder is the Check Digit.
|
1 |
1 |
/ |
7 |
8 |
5 |
8 |
\ |
7 |
1 |
4 |
|
|
|
|
|
7 |
7 |
|
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|
|
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|
|
|
|
|
|
|
1 |
5 |
|
|
|
|
|
|
|
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|
|
|
1 |
1 |
|
|
|
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|
|
|
|
|
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|
|
4 |
8 |
|
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4 |
4 |
|
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|
4 |
|
|
|
|
|
The Check Digit is 4.
