There is going to be variations between the units of course but if you have a process in place you just customize it to the property.

Again, the MIRR is best suited as adjustments to any income stream can be made to compensate for the uniqueness, variations and similarities of alternative investments to identify a required yield. :) 

There are many variations of this, but adding complexity to anything usually increases cost and increases problems. 

  There is an online calculator app that can show you most of the variations you are looking at (www.undebt.it) It can show you the various payoff methods debt snowball(lowest balance first, debt avalanche(highest interest), cashflow(debt that have the highest impact)  You can run any scenario and it will show you payoff dates for each, you only enter your account names, balances and interest rates.

There will be variations in the overall expense percentage to apply and an investor should carefully analyze the numbers before buying anything..

Or some variation of this?

Hi Christopher,I lived in Worcester for 8 years during college and grad school and as I'm sure you have already noted, it has a huge variation in quality of neighborhood.

The wild estimate variations is due to that.

If the monthly average is $100, charge them $115 to cover excess use variations.

I say "should" because the IUL will have year to year variation.