Multiply cell contents by literal value

I want to multiply the contents of a cell by the number 12. How can I do that?

Please take a look to the documentation.
https://wiki.documentfoundation.org/Documentation/Publications#LibreOffice_Calc_Guide
https://nextcloud.documentfoundation.org/s/ggpaMN4QrAgGqn9#pdfviewer

I was trying to use the PRODUCT function - got an error with every variation. I switched to just using the multiply symbol like =F24*12 and it worked. Thx