Please can someone help me I`am desparate!!!!!!

I`am doing an assignment for an exam in excel spreadsheets, I have not been
shown how to do a formula
for a football table, please look at example of the table .

Team P W D L GF GA GD Pts
Arsenal 38 25 8 5 74 34 40 ?

points for a win is 3 drawn 1 lost 0

would be fantastic if someone can help me asap need to complete by late
friday 1st september