vlookup multiple values in one cell separated by comma

Dear,

Could someone help me please, I have column with number must be equivalent to another column value.

Number value
1 100
2 50
3 210
4 320
5 500
. .
. .
. .
1000 2

and I have a my sheet having a column with cell could having more than one numbers separted with comma.

column somme
5 500
2 50
5,3 this should be (210+500)
.
.
.


and I need to generate a new somme column as example above.

need you help please.

To best describe or illustrate your problem you would be better off attaching a dummy workbook. The workbook should contain the same structure and some dummy data of the same type as the type you have in your real workbook - so, if a cell contains numbers & letters in this format abc-123 then that should be reflected in the dummy workbook.

To attach a file to your post,
click advanced (next to quick post),
scroll down until you see "manage file",
click that and select "add files" (top right corner).
click "select files" find your file, click "open" click "upload" click 'done" bottom right. click "submit reply"

Once the upload is completed the file name will appear below the input boxes in this window.
You can then close the window to return to the new post screen.