Question: how to calculate qoq growth in tableau?
Answer: Drag [Order Date] to Rows.
Click the plus sign on YEAR(Order Date) to add QUARTER(Order Date) to Rows.
Drag [Sales] to Text.
Right-click [Sales] on the Marks card and select Quick Table Calculation > Percent Difference. ... 
Right-click [Sales] on the Marks card and select Edit Table Calculation.