Define a second summary field. Use the "Fraction of total" option and select the same field as the Total field in your first summary field.
Format it on your layout to use Percent format on the inspector's data formatting tab.
I create a summary field. Use "Fraction of total", but the "Model" field is grayed out. Or do I need to do that withing the layout?
What field does your Total field add up?
Are you counting records or are you summing a number field to get the total?
If Total is a count of records, add a calculation field that returns a 1 for every record. Then refer to it for your Fraction of Total summary.
What formula to return a 1. Is that a "Get" record count?
Open Manage | Database | Fields
Select your table in the drop down.
Enter a new field name: constOne for example.
Select the calculation field type and then click the Create button.
The specify calculation dialog will open.
Type a 1 in the calculation dialog and select "number" as the return type.
Now set up your Fraction of Total field to compute the "fraction of total" of constOne.
Worked like a charm. Thanks again.