# Why dose the result stay the same when I change the Z-factor **URL:** \ **Category:** Software Support\ **Tags:** annual-water-yield\ **Created:** [August 11, 2024, 8:47am UTC](https://community.naturalcapitalalliance.org/t/why-dose-the-result-stay-the-same-when-i-change-the-z-factor/5365 "2024-08-11T08:47:19Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![july\_01](https://avatars.discourse-cdn.com/v4/letter/j/7c8e57/32.png) [@july\_01](https://community.naturalcapitalalliance.org/u/july_01)\ **Post date:** [August 11, 2024, 8:47am UTC](https://community.naturalcapitalalliance.org/t/why-dose-the-result-stay-the-same-when-i-change-the-z-factor/5365/1 "2024-08-11T08:47:19Z")
why dose the result stay the same when I change the Z-factor ---
**Author:** ![swolny](https://yyz1.discourse-cdn.com/flex031/user_avatar/community.naturalcapitalalliance.org/swolny/32/181_2.png) [@swolny](https://community.naturalcapitalalliance.org/u/swolny)\ **Post date:** [August 12, 2024, 1:59pm UTC](https://community.naturalcapitalalliance.org/t/why-dose-the-result-stay-the-same-when-i-change-the-z-factor/5365/2 "2024-08-12T13:59:12Z")
Hello @july_01, and welcome! I’m assuming that you’re asking about the Z parameter in the Annual Water Yield model? If so, this question has been asked several times before on this forum. Please use the Search function for “Z factor” or “Z parameter” and see if the results help. ~ Stacie ---
**Author:** ![system](https://canada1.discourse-cdn.com/flex031/uploads/naturalcapitalproject/original/2X/8/8d95591aa074da87ea0fdd61ca47c1c3c0588aa7.png) [@system](https://community.naturalcapitalalliance.org/u/system)\ **Post date:** [November 10, 2024, 1:59pm UTC](https://community.naturalcapitalalliance.org/t/why-dose-the-result-stay-the-same-when-i-change-the-z-factor/5365/3 "2024-11-10T13:59:43Z")
Closed on November 10, 2024, 1:59pm UTC This topic was automatically closed 90 days after the last reply. New replies are no longer allowed.