Return Multiple Cell Addresses, that contain MAX value

I am creating a spreadsheet for my work. It is setup as a sales league table. An example is the are 7 teams. Cells G13 to G19 are used for sales, so each sale equals 5 points. What i am trying to do is find the MAX value of the cell range above and return a value of 8 (points) in another cell which will be added to that teams overall total. I have created a formula which returns the cell adress of the the cell that contains the max value and then used the IF function in another cell to allocate the 8 points.

eg.

Cell T20 contains the formula: CELL("address",OFFSET(G13,MATCH(MAX(G13:G19),G13:G19,0)-1,0))

and

Cell T13 to T19 contains the formula: =IF(T20="$G$13","8","0") (so if the above formula returns the cell address of G13 then 8 points are added to the cell T13 and added to the overall teams points.

The above might not be the best way as im very rusty with excel, but it does work!!! UNTIL two teams have the same number of sales, so say G13 contains 5 sales (which is the highest value in the range) but G14 also has 5 sales. The 1st formula only returns the 1st cell with the MAX value and ignores and cells which have the same value. So it returns the cell address of $G$13 and allocates the 8 points but nothing happens the points for T14.

added file so view example and formulas. and help or changes welcome

Amazing, thanks alot, ive implimented this formula and the changes you advised, and it all works amazing. Just one last question...how would i change the =IF(G13=MAX($G$13:$G$19),8,0) formula you advised, to give a 0 value if the cells are blank. at the moment if all cells are blank everyone gets 8 points.

Thanks Again.

Thanks alot! Very last thing, I promise. My Sales coloum is now working off a percentage instead of number of sales. I've to allocate different values depending on a range of percentages.
* 0 points if the cell is empty
* I've to give -2 points if the percentage is between 0.1% and 2.99%
* If the percentage is between 3% and 3.99% i've to allocate 1 point
* 2 points if between 4% and 4.99%
* Finally, i've to give 5 points if the percentage is 5% or over.

I have used the below formula, but it hasnt reurned the desired results.

=IF(G13="",0,IF(AND(G13>=0.1,G13<=2.99),-2,IF(AND(G13>=3,G13<=3.99),1,IF(AND(G13>=4,G13<=4.99),2,IF(G13>=5,5)))))

I am using the same. On the example spreadsheet attached to this thread, it was column G "WIN (Sales):" the formula is in column N.

my head was pickled, trying to do my normal work and this at same time.
used...
=IF(G13="",0,IF(G13<=2.99%,-2,IF(G13<=3.99%,1,IF(G13<=4.99%,2,IF(G13>=5%,5)))))

seems to do what i want it to, think i was over thinking the problem.