This option allows you to set the number of decimal places to display in monetary numbers (where possible).
All values entered in numeric fields are stored in the database with up to 4 decimal places. You may not want to display all four decimal places on your lists and reports, so you can designate the number of decimal places, from 1 to 4, that will display. The default number is 2.
To turn on this feature:
Click on the gear icon and select Settings.
Select Decimal Places (of Monetary Numbers).
Enter the number of decimal places you want to display (1 through 4) in the text field.
Click on Save.