Date as a Percentage

[evansabres]

I am attempting to create a chart to visualize sales trend for different events that have different lengths of time that they were on-sale for. However, one event could possibly have an on-sale length of 40 days whereas another could have an on-sale length of 200 days. So, in an attempt to normalize these periods of time, I am wondering if it would be possible to create a time dimension that is a percentage of time elapsed.

My fields are eventDTE (actual date of the event date) transDTE (transaction date) onsaleDTE (date tickets went on sale) and netSoldQTY (number of tickets sold)

My expression is straightforward, =NUM(SUM(netSoldQTY),'#,###.')

Any thoughts on how I would create the time dimension?

An example of a possible scenario:

eventDTE = 10/13/2016   

transDTE = 10/01/2016

onsaleDTE = 9/17/2016 (this is constant)

[MarcoWedel]

can you describe your calculation and expected result given some more sample data?

[johnw]

So 0% would be transDTE = onsaleDTE, and 100% would be transDTE = eventDTE?

(transDTE - onsaleDTE)/(eventDTE - onsaleDTE) as PercentElapsed

But it seems like to be useful as a dimension for a chart, you'd need to group these, like 0%-10%, 10%-20%, and so on? Whatever interval makes sense. Here's 10%.

class((transDTE - onsaleDTE)/(eventDTE - onsaleDTE),.1) as PercentElapsedRange

[evansabres]

Your assumption (So 0% would be transDTE = onsaleDTE, and 100% would be transDTE = eventDTE?) is correct.

Will try out your suggestion and reply to thread.

Thanks as always for assistance.