show me a DAX formula for Power BI

I need to replicate excel's sumproduct function using the DAX language in Power BI. I have attached a simple excel spreadsheet with two tabs of input data as well as the output tab I need to recreate using Power BI instead of excel. In this example, each portfolio has a % allocation to multiple strategies and each strategy has a % allocation to multiple holdings. I need to get the holdings % by portfolio (strategy weight * holding weight).