Calculate Proportion

Dear DAX and Power BI experts,

I am pretty new to Power BI therefore appreciate if anyone could help me with my problem.

I would like to present actual vs plan in a bar chart. However my actuals data is in quarterly figures and plans are in annual figures. I need to proportion the plan into quarterly figures based on actuals over the year and product. At the moment, it is only over company, year and product but it should also be able to calculate correctly when new columns are introduced (e.g. Area, Sales person etc).

eg. Annual Plan = 100, Quarterly Actuals=10, 30, 50,40 -> Q1 plan = 100 * 10/130, Q2 = 100 * 30/130 and so on.

My question is: What is the most efficient way to do it and how?

I also attached the sample data below.

Many thanks in advance.

Plan

Plan

Actuals

Actuals

Actuals vs Plan (after calc)

Actuals vs Plan