ROUNDDOWN function

Category: Math and trigonometry
Introduced: Excel 2003

Summary

Rounds a number down, toward zero

Syntax

ROUNDDOWN(number, num_digits) The ROUNDDOWN function syntax has the following arguments:
• Number Required. Any real number that you want rounded down.
• Num_digits Required. The number of digits to which you want to round number.

Example

=ROUNDDOWN(3.2, 0)
=ROUNDDOWN(76.9,0)
=ROUNDDOWN(3.14159, 3)
=ROUNDDOWN(-3.14159, 1)
=ROUNDDOWN(31415.92654, -2)

Microsoft Support Page

https://support.microsoft.com/en-us/office/rounddown-function-2ec94c73-241f-4b01-8c6f-17e6d7968f53

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