NPV() returns the aggregated net present value of an investment based on a discount_rate per period and a series of future payments (negative values) and incomes (positive values), represented by the numbers in value, iterated over a number of records, as defined by a group by clause. The payments and incomes are assumed to occur at the end of each period.
Syntax:
NPV(discount_rate, value)
Return data type: numeric. The result has a default number format of money.
Arguments:
| Argument | Description |
|---|---|
| discount_rate |
discount_rate is the rate of discount over the length of the period. |
| value | The expression or field containing the data to be measured. |
Text values, NULL values and missing values are disregarded.
Learn more
Examples and results:
Add the example script to your app and run it. To see the result, add the fields listed in the results column to a sheet in your app.
| Example | Year | NPV1_2013 |
|---|---|---|
|
Cashflow: LOAD 2013 as Year, * inline [ Date|Discount|Payments 2013-01-01|0.1|-10000 2013-03-01|0.1|3000 2013-10-30|0.1|4200 2014-02-01|0.2|6800 ] (delimiter is '|');
Cashflow1: LOAD Year,NPV(0.2, Payments) as NPV1_2013 Resident Cashflow Group By Year; |
2013 |
-$540.12 |
| Example | Year | Discount | NPV2_2013 |
|---|---|---|---|
|
Given that the Cashflow table is loaded as in the previous example: LOAD Year,NPV(Discount, Payments) as NPV2_2013 Resident Cashflow Group By Year, Discount; Note that the Group By clause sorts the results by Year and Discount. The first argument, discount_rate, is given as a field (Discount), rather than a specific number, and therefore, a second sorting criterion is required. A field can contain a different values, so the aggregated records must be sorted to allow for different values of Year and Discount. ; |
2013 |
0.1 |
-$3456.05 $5666.67 |