I have requirement to display report (text table) for selected period to show Actuals for current & previous periods, Forecast only for current period and variance between Actual and Forecast for current period.
The info is too much limited.
Could you attach excel sample sheet or something at least.
In addition to providing a sample workbook as Shin asked, you can also learn more about hor forecasting works in Tableau here.
How Forecasting Works in Tableau
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