Our customer would like us to create a KPI in a query,
The KPI = The total number of all the closed service documents / the total number of all the service documents
the input screen would be some month, e.g., 6/2013 or 7/2013, the close critieria is easy to get by the starting time field and the close time field. Just wonder how to get the number in the numerator and the number in the denominator in a query.
Someone told us to use the computing tab by employing the numbering features in a formula in Query Designer, but we have no experience on it and not sure if it's doable.
Anyone's idea and had better give a step by step procedure would be really appreciated! We will give appropriate rewards points to the valuable answers.
Kevin