Replicate Pivot into PowerBI and using DAX

[Yrstruly2021]

Please assist:

I have brought in the Pivot table as an example of what the PowerBI report should look like, see:https://drive.google.com/file/d/1_XyrEdRUsQImyuDhapkA5fqcpXRGUjRV/view?usp=sharing .

My Fact Data, https://docs.google.com/spreadsheets/d/1mN6dGl4NY9N8yrXDpmx_CTJnZbxL61Zi/edit?usp=sharing&ouid=10412... 

Cash Flow tab in this file, https://docs.google.com/spreadsheets/d/1mN6dGl4NY9N8yrXDpmx_CTJnZbxL61Zi/edit?usp=sharing&ouid=10412... represents the final look with calculations as seen in my PBIX file. Source Data in the same file is my data in SQL DB. Please advise what will be the best way to get my data model/report aligned so that I can do the formulas in PowerBI using DAX as seen in the Cash Flow tab, column K.