If you're referring to how to find what yours is at the moment, the easiest way is to use Zach Monroe's monitor at https://www.ckpoolmonitor.zachmonroe.com/. You'll need to go through a couple of steps to link an API and set up your logon, but it's a nifty way to monitor your pool performance/status...and your 5Nd is listed under the "Dashboard" for your login.

If you're just not clear on what it is, there's an explanation on the kano.is home page through this link https://kano.is/index.php?k=payout

Hope that's helpful.