| 1 | <?php |
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| 8 | class InterestAmountCalculator implements InterestAmountCalculatorInterface |
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| 9 | { |
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| 10 | /** |
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| 11 | * Calculate interest amount for present value based on interest rate |
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| 12 | * @param float $presentValue |
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| 13 | * @param float $interestRate |
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| 14 | * @return float |
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| 15 | */ |
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| 16 | 4 | public function getInterestAmount(float $presentValue, float $interestRate): float |
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| 21 | |||
| 22 | /** |
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| 23 | * @param float $interestRate Yearly interest rate (based on 360 days) |
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| 24 | * @param float $periodLength Period length in days |
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| 25 | * @return float |
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| 26 | */ |
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| 27 | 4 | public function getPeriodInterestRate(float $interestRate, float $periodLength): float |
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| 32 | } |
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| 33 |