Percent and Constant Selection

Question

Hello,
I need your advice concerning a BEx Question.
I have created a query like this :
- 2 rows defined by restriction with constant values on the Cost Center characteristic
- 1 Total Row done by formula = Row1 + Row 2
- Key figure 1:  0QUANTITY
- Key figure 2 : This quantity in %.
What i did :
Row 1 = Selection on 0COSTCENTER for A,B,C values
Row 2 = Selection on 0COSTCENTER for D,E,F values
Row 3 = Formula = Row 1 + Row 2
Key Figure 1 : 0Quantity
<b>Key Figure 2 : i don't find how to create this percent.</b>
The famous SUMCT & SUMGT functions doesn't work because i use selection in the rows so there is no Total line.
Coud you give me ideas or maybe you already have solved this problem ?
Thanks in advance for your precious help,
Cyril.
EXAMPLE :
If we have the result :
| Quantity |
.GROUP1..
...30.......
.GROUP2..
...20.......
.TOTAL.....
...50.......
<b>Id' like to create another colum % :</b>
| Quantity |....%...|
.GROUP1..
...30.......
..60%..
.GROUP2..
...20.......
..40%..
.TOTAL.....
...50.......
.100%..

Answer 1

Solved.
I used the "Define Cells" button in the query designer (between "properties" and "conditions" buttons).
I verify every day the sentence :
"The best way to solve a problem is to explain the problem"
Cyril