If the Project Status Items reports a weak percentage of approximated points this means the number of approximated points compared to the number of processed points is larger than the threshold listed on the Project Review Settings Dialog.
Note that if you have processed a project but then made a change to a point, such as dragging a mark, adding a reference, etc. this point will be considered ‘approximated’ until processing is re-run. For this reason the first thing to try when this warning is displayed is processing the project (see Processing Dialog).
If this warning still remains after processing the project check the Object Point Properties to see how many points are set to ‘use in processing’.