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Simple interest with sub-annual interest periods formula

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 Description of the Simple interest with sub-annual interest periods formula

Formula for the calculation of simple interest with sub-annual interest calculation periods.

  Formula

\[ I=C\cdot r\cdot \frac{n}{n_{Y}} \ \]

 Symbols

\(C\ \)       
Start capital
\(n\ \)       
Number of days
\(n_{Y}\ \)       
Number of days per year (360, 365 or 366 depending on day-count convention)
\(r\ \)       
Nominal annual interest rate