My data are like This
<tbody>
TotalFeed
Col1
Col2
Col3
Factor1
Factor2
Factor3
100 (sc-1)
50
25
25
=50/100
=25/100
=25/100
100 (sc 2)
70
=70/100
?
?
100 (sc-3)
70
15
=70/100
=15/100
?
</tbody>
As a matter of math its easy the 30 % remaining will be allocated as 15% and 15 % ...