World Cup table

Hello,

Could anybody pleasse help how make a macro that counts goals for, goals againts and points different groups for the differnt teams in this years World Cup Soccer. I have created a excel document where I have entered all the games and also made the tables. But i don't know who to make a macro that will do the math based on the scores that will be entered. I've attached a copy of the excel file and if somebody could help me with this I would be grateful.