Hi - I have two values and a date dimension - Invited Renewals and Successful Renewals. Successful will always be lower than invited, similar to that below:
Date Invited Renewals Successful Renewals
Mar 2015 400 350
Feb 2015 350 297
Jan 2015 410 323
I want to be able to show them as a stacked chart - I've been trying to show overlapping, relative, as a percentage, but I can't seem to find something that quite fits. I've tried to get Successful as a percentage of Invited and show that, but the only way I can seem to be able to it is by taking Successful from Invited, and staking that on top of Successful - This gives me a cumulative amount of correct 'Invites' but obviously the numbers are all wrong when you mouse over - or does a fast change to a table. An image of that version is below: it looks right but its wrong!
In a perfect world I want to show a bar for Invited Renewals, but be able to see Successful Renewals as chunk of that. I cant add it on as a line in a combo, as I am also showing a conversion percentage metric (not shown). I also don't want to make it a !00% stacked! On mouseover in the chart below it might say 'Invited Renewals 400 Successful Renewals 350', rather than the current situation, where it says 'Invited Renewals 350 Successful Renewals 50' to get the cumulative figure to be right!

Any ideas?
Cheers
Andrew