There appears to be a problem with controlling the percentage shown in a Pie Chart.
For example, in either a ClarisWorks document or a ClarisImpact document, make a Pie Chart of the following data:
Apples 30
Oranges 40
Peaches 30
In the chart options, under Series, choose the option of Show Value, % in Slice (ClarisImpact) or Display Label Data, & in Slice (ClarisWorks).
Notice that the resulting chart shows 30.0% in some slices, but 40% (no decimal point) in the other. This is reproduceable in versions of ClarisWorks from 1.x through and including 2.1v3 and in ClarisImpact through 1.0v3. Claris development is aware of the problem.