Loan Amortization & Payoff Audit Kit — Monthly Payment, Full Schedule & Extra-Payment Interest Saved (Python Script + Fictional Sample)

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Description

Python 3 script for small business owners with loans in a CSV: computes the standard monthly payment, simulates month-by-month amortization with extra payments, reports payoff time and interest saved, and writes a full schedule for the first loan. Fictional 5-loan sample and tests included; standard library only, no lender is contacted and no interest saving is promised.