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Seeking an Amortized Mortgage Function to populate a field

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Hello

My base is begging for a PMT or Payment function, but there isn’t one I can find… I am hoping someone has found a workaround to calculate a mortgage payment. Kind of critical to our client and sales processes.

I realize this is not a spreadsheet, but other databases can do it. I see there are plenty of math functions… is anyone able to put them together in a way to “make” mortgage payment function?:

My Airtable Base is very depressed.

a spreadsheet example looks like this:

Screen Shot 2018-11-28 at 9.45.37 AM.png

…where the field “MONTHLY PAYMENT (PI)” in the middle is the result I’m talking about… because to get that payment I must use the fields before it and a PMT function … like this
09%20AM

So i ask, would anyone able to put together the mathematical functions in a way to “make” an amortized mortgage calculation based on %Rate, Term (in months or years), & principle… with the added bonus of a field for Extra monthly payment to add regular additional principle to the repayment.

1 Reply 1

You’re in luck, my friend:

I just built that last week.