Mixing Actual months sales to forecast sales to give projected year end sales

I have 3mths Actual Data (Qty & Revenue) plus forecast quantity for each off the next 9 months and I want a Forecast Sales for the Year-End.
So Forecast Sales = 3 mths Actual + 9mths Fcast Qty * Average selling price of the first three months.
Being a beginner at PBI not sure how to structure it…any ideas

Welcome @Alexcel on forum. Here is a link of a similar post that might guide you

Actuals and Forecast

Also if you can watch Sam’s videos on Budgeting and Forecasting.
Forecasting Logic in Power BI using Dax

Hope it will be of help to you.

Thanks and have a good day


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