Final answer:
To subtract two dates in Power BI, use the DATEDIFF function to calculate the difference between the dates in the specified unit of time, such as years, months, weeks, or days.
Step-by-step explanation:
In Power BI, you can subtract two dates by using the DATEDIFF function. This function calculates the difference between two dates in a specified unit of time, such as years, months, weeks, or days. The syntax for using DATEDIFF is DATEDIFF(start_date, end_date, unit_of_time).
For example, to subtract two dates and get the difference in days, you can use DATEDIFF( Table1[start_date], Table1[end_date], DAY ). This will return the number of days between the start date and end date.
Make sure the dates are in a valid date format and are stored as date data types in your Power BI dataset.