I'm new to flows and looking for some help/guidance.

I created a new custom object "Budgets" for our Search Managers to track spend budgets from various mediums (Google, Bing, Facebook, etc..). What I am looking to do is update the status of the old budget when a new one is created given it meets the right criteria.

Ex: 
      Google Budget = $5,000
      Campaign Type = Search
      Budget Status = Active

When a new budget for a Google search campaign is entered into the object for $7,000 and is marked active. I need to flow to find the old budget and update the status to "Expired".