Show only number before decimal in calculated column without rounding the number

Question

Application : SharePoint 2013

I need to show only part of number before decimal nn calculated field that is looking on number column. And Calculated column results should be shown without rounding numbers.

Example:

Number column | Calculated column
   15,6781             15
   5,78                 5
   4,11                 4

Answer 1

I think, =ROUNDDOWN([Column1],0) should work nicely. See - https://msdn.microsoft.com/en-us/library/office/bb862071(v=office.14).aspx