Try this
Organization and [Course Details] are Dimensions
And use expression like
Sum(Ontime) /Sum(Ontime+Late+Incomplete)*100
And give label as % then go to presentation --> And check Partial Sum for [Course Details]
Best Anil, When applicable please mark the correct/appropriate replies as "solution" (you can mark up to 3 "solutions". Please LIKE threads if the provided solution is helpful