How to assign deal probability
Deal probability represents the probability that a deal will close. This property is updated automatically by HubSpot when a user moves a deal to a new stage based on the Win probability set for each deal stage in the pipeline settings, but you can manually edit it for specific deals.
Go to Deals and choose the deal to use. Click View all properties and search for ‘Deal probability’. Adjust the percentage to your needs.
From the navigation bar, click CRM, then select Deals.

From the index page, select the deal that you would like to edit.
In the left sidebar, click Actions, then select View all properties.

Type ‘Deal probability’ into the search bar and adjust the percentage.
