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Hi,

Does anyone know how (or if it's possible) to calculate an amortization schedule with additional principal payments on an HP 12c?

For example.
PV = 100,000
n = 30 x 12
i = 3.0 / 12

Solving for PMT = -421.60.
I'd like to add an additional -500 to the PMT then solve again for n so see how quickly the loan is paid off.

Thank you
(01-18-2015 09:56 PM)caccorsi Wrote: [ -> ]Hi,

Does anyone know how (or if it's possible) to calculate an amortization schedule with additional principal payments on an HP 12c?

For example.
PV = 100,000
n = 30 x 12
i = 3.0 / 12

Solving for PMT = -421.60.
I'd like to add an additional -500 to the PMT then solve again for n so see how quickly the loan is paid off.

Thank you

After solving for the initial payment, just add $500 (or subtract, depending on sign convention) to get the new total $921.60, press PMT, then press N to get the new number of payments, 127
Thank you!! Exactly what I was looking for.
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