Add extra row to matrix visual

govi , We usually add the extra value to the dimension table and force a different calculation for that value.

I have done it using the extra table here, but the same can be forced on the dimension table

Power BI How to get the P&L formatting right with additional sub totals: https://youtu.be/C9K8uVfthUU
Power BI How to get two columns format Profit and Loss Statement(P&L) right: https://youtu.be/WLg85yiMgHI
https://medium.com/microsoft-power-bi/power-bi-formatted-p-l-with-custom-sub-totals-and-blank-rows-e39ca822908a