File location: https://docs.google.com/spreadsheet/ccc?key=0ApxzKgPhNUY9dGRmMDNaNzZVb1pNYVVUX0s0cUx4OXc&usp=sharing#gid=0
I've seen a bunch of threads here and on other various forums of people asking "what's going to be the most efficient MP to farm post 1.0.7?" I've decided to create a spreadsheet (albeit pretty ugly, I'm no designer) that requires very little input on the users part. I'm not a believer that MP0 is the best for everyone, or any MP level can be the blanket "best" for everyone. I will admit that for 80% of people out there MP0 will still be the most efficient way of xp farming...but this spreadsheet will all but eliminate any doubt on an INDIVIDUAL basis.
What it does ask is for you to do your farming run (alk, raoha, whatever) at any MP level you wish to analyze and then type the amount of time it took you do complete that run. It also asks you to type in the XP you get at MP0 (this is what it uses to calculate the XP gained per run).
The sheet starts out protected (no password if you feel the urge to manipulate) and the only the grey shaded areas are your inputs: Current Paragon level, Current amount of XP at your paragon level (i.e. 2,500,000 into paragon level 80), desired MP farming, XP at MP0, and time taken to do your farming route at any MP level you wish. I've also added in the capability of calculating the difference for every xp buff I thought of: cains/rings/ruby. Hope you enjoy, if you have any questions please let me know!
FYI -- Apparently google documents doesn't support 3D ranges so when you see the file in the link you'll see an unknown range error. Once you download and enable editing it will recalculate and should work perfectly.