This page describes how to round off your results in the gradebook.
Marks Return Rounds to the nearest integer
The default behaviour of the marks return interface is to always round to the nearest integer, so 59.1 becomes 59, and 59.5 becomes 60. If this is not your policy, you should round off your marks in the gradebook prior to pulling through to marks return.
Rounding all fractions up or down in the gradebook
Rounding to the nearest integer in the gradebook
You may want to show the rounded mark in the gradebook.