SAP IP - Inputting % Value in KPI and Disaggregation

Hi Experts,

I have a requirement in one of my planning workbook to plan a %age Value for a Discount KPI. This %age could be at higher granularity level and need to be used for lower granularity levels too. But if I do a disaggregation to put values at lower granularity level then it splits that percentage.

For Example:

If I have 4 articles in one Product Category(PC1) and I plan 20% as Discount for that Category. Then 20% gets disaggregated in 4 articles as 5%.

Category     Article   %

PC1               A1     5

PC1               A2     5

PC1               A3     5

PC1               A4     5

Overall Results     20

But I want it to happen as below -

Category     Article   %

PC1               A1     20

PC1               A2     20

PC1               A3     20

PC1               A4     20

Overall Results     20

Kindly let me know if there is any solution to achieve this.

Kind Regards,

Ravi