For all you excel monkeys out there I could use some help.
I'm currently trying to create a function that checks if a given interest rate is within both an annual (change from last year) and lifetime cap.
Annual cap is 1% lifetime cap is 5% (beginning interest rate is 6.75%).
I tried an IF statemetn and that turned into a black hole. Also messed around with a MAX and MIN function to no avail...
Ideas?
Trying using the VLOOKUP function.
You can also use a custom function...pull up VBA (alt+f11), insert a new module into your worksheet, and paste this in
Function IntCapTest(IntBegin As Double, IntPrior As Double, IntCurrent As Double) As Boolean
'Created by Nabooru ' 'This is a custom funtion used to check if a given interest 'rate is within both an annual and lifetime cap. The function 'uses 3 inputs: the beginning interest rate, the prior 'period interest rate, and the current interest rate.
Dim AnnCap As Double Dim LifeCap As Double
'Declare max variations
AnnCap = 0.01 LifeCap = 0.05
Dim AnnCapTest As Double Dim LifeCapTest As Double
'Determine actual veriation (abs. value variation)
AnnCapTest = Abs((IntCurrent - IntPrior) / IntPrior) LifeCapTest = Abs((IntCurrent - IntBegin) / IntBegin)
'Test whether abs. value of variation is within the declared 'Cap and return true/false accordingly
If AnnCapTest AnnCap And LifeCapTest LifeCap Then IntCapTest = True If AnnCapTest >= AnnCap Or LifeCapTest >= LifeCap Then IntCapTest = False
End Function
Thanks a ton man!
I inserted this into a new module, how do I go about applying this to my finally payrate cell each year? Also, I should have mentioned the function needs to return the what the interest rate for the current year will be taking into account the caps and floors. Sorry for the dumb questions and thanks again for writing that.
sorry it's a bit hard to visualize this w/o seeing the spreadsheet but once you put the code into the module you can go into the worksheet and use it like a normal function, i.e. type in =IntCapTest([beginning interest rate here],[prior year interest rate here],[current rate here]) as if you were using a normal built-in Excel formula. hope that helps; otherwise I should show you from a sample
got it, thanks.
Any insight on how I would go about altering this to return what the interest rate for the year needs to be given the cap and floor limitations?
well I think that would be a range so do you mean the max variance you could have for the year or the actual max/min result you could have based on that variance?
Yes, for the lifetime cap I think it would be a variance, e.g. between 1.75% and 11.75%.
Maybe this will help. Here's what I'm looking at in excel
A1: Index rate(fluctuates) + A2: 1.25(margin) = A3:Contract Interest rate(annual & lifetime caps need to be applied here).
EX:
4.00% + 1.25% = 5.25%; last period IR was 6.75%, therefore cell A3 needs to return 5.75% (1% annual cap)
that help?
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