How to Use PDURATION function in Google Sheets in 2020?

PDURATION functionThe PDURATION function returns the number of periods for an investment to reach a specific value at a given rate. Mathematically, PDURATION = (log(futureValue) – log (currentValue))/(log(1 + rate)).

Parts of a PDURATION function

PDURATION(rate, present_value, future_value)

Part
Description

rate
Required. The rate at which the investment grows each period.

present_valuepresent_value
Required. The investment’s current value.

future_valuefuture_value
Required. The investment’s desired future value.

Notes

All values must be positive and greater than 0.

Examples

PDURATION
FORMULA

1.817059493
=PDURATION(0.25, 10, 15)

3.600511394
=PDURATION(0.75, 2, 15)

Related functions

RRI: The RRI function returns the interest rate needed for an investment to reach a specific value within a given number of periods.