Returns the interest paid during a specific period of an investment.
| Name | Type | Description |
| arg1 | number | Interest rate per period. For example, use 6%/4 for quarterly payments at 6% APR. |
| arg2 | number | Period for which you want to find the interest. |
| arg3 | number | Number of payment periods in an investment. |
| arg4 | number | Lump sum amount that a series of future payments is right now. |
builder.CreateFile("xlsx");
var oWorksheet = Api.GetActiveSheet();
var oFunction = Api.GetWorksheetFunction();
oWorksheet.GetRange("A1").SetValue(oFunction.ISPMT(0.1/12, 1, 2*12, 2000));
builder.SaveFile("xlsx", "ISPMT.xlsx");
builder.CloseFile();