Created
May 27, 2019 22:21
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Amortization table
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| def amortization(loan, apr, years, extra=0): | |
| rate = apr / 100 / 12 | |
| periods = years * 12 | |
| payment = (loan * rate) / (1 - pow(1 + rate, -periods)) | |
| balance = loan | |
| for period in range(periods): | |
| if balance <= 0: | |
| return | |
| interest = balance * rate | |
| principal = payment - interest + extra | |
| balance -= principal | |
| yield period, interest, principal, balance |
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