LibreOffice 25.2 Help
In LibreOffice Calc, all decimal numbers are displayed rounded off to two decimal places.
Mark all the cells you want to modify.
Choose Format - Cells and go to the Numbers tab page.
In the Category field, select Number. Under Options, change the number of Decimal places and exit the dialog with OK.
Select the document with Command Ctrl+F6 and press Tab
Go to the Calculate page. Modify the number of Decimal places and exit the dialog with OK.
Select the document with Command Ctrl+F6 and press Tab
Go to the Calculate page. Mark the Precision as shown field and exit the dialog with OK.