Configuration of Weightage of each department

Summary:

Hello Experts,

We have following requirement: 

One Organization with 11 departments. Each departments will be having a set of goals. Sum of weight of all goals of the department will be 100% (Achievable by checking "Sum of weight must be 100%" checkbox at goal plan level). Each department will be having some weightage (Dept A 30%, Dept B 10%, Dept C 60%). and the sum of all the departments weightage needs to be 100%. 

Could you please help me understand how can we achieve this requirement. Where can I store this data in the system.

Regards,

Ritu

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