How do you create a Pie Chart?

I have created an assessment/questionnaire type app and i would like to show a dashboard to display the users progress through the questions. There is an enumeration at the end of each question where the user can specify whether the question is complete, in progress or alternatively not started. My aim is to display the sum of each of these categories in a pie chart on the dashboard but i am having huge difficulties using the various pie chart widgets and the online help isn't much use.   Does anyone have any suggestions?
1 answers

Use charts from the appstore :