Real estate refinancing – example from HP 12C to TI Nspire

From the “HP 12C Platinum Solutions Handbook”, an example is given on calculation of refinancing an existing mortgage (on page 7). Since the HP 12C is a special breed specializing in financial calculations, much of the steps are optimized and is different from using financial functions available on other higher end calculators like the TI Nspire. In the following re-work of the same example, the Finance Solver is called from within the Calculator Page and the Vars are recalled for calculations.

refinance0

Monthly payment on existing mortgage received by lender calculation.
refinance1

Monthly payment on new payment calculation.
refinance2

Net monthly payment to lender, and Present value of net monthly payment calculation.
refinance3

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