How does the FLOOR function (DAX) work?
The FLOOR function (DAX) rounds a number down, toward zero, to the nearest multiple of significance.
FLOOR Formula Syntax
How do you use the FLOOR function?
The FLOOR function rounds a number down to a given multiple. FLOOR works like the MROUND function, which also rounds to a given multiple, but FLOOR always rounds down.
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Considerations when using the FLOOR function
If either argument is nonnumeric, FLOOR returns **#VALUE!**error value.
If number and significance have different signs, FLOOR returns the **#NUM!**error value.
Regardless of the sign of the number, a value is rounded down when adjusted away from zero. If the number is an exact multiple of significance, no rounding occurs.
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Formula examples using the FLOOR function
=FLOOR(InternetSales[Total Product Cost],.5)