DAX Function Guide
ROUNDDOWN
Sam McKay
CEO & Founder
How does the ROUNDDOWN work?
ROUNDDOWN Formula Syntax
ROUNDDOWN(
<number>, <num_digits>
)
How do you use the ROUNDDOWN?
The ROUNDDOWN function will always round numbers down. The number of places to round to is controlled by the num_digits argument. Positive numbers round to the right of the decimal point, negative numbers round to the left, and zero rounds to the nearest 1.
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Considerations when using the ROUNDDOWN?
If num_digits is greater than 0 (zero), then the value in number is rounded down to the specified number of decimal places.
If num_digits is 0, then the value in number is rounded down to the nearest integer.
If num_digits is less than 0, then the value in number is rounded down to the left of the decimal point.
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Formula examples using the ROUNDDOWN
=ROUNDDOWN(3.14159,3)
=ROUNDDOWN(31415.92654, -2)
=ROUNDDOWN(76.9,0)
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