Budget shows estimated budget spent on the Sponsored or Likely Sponsored posts.
In order to get the budget value we calculated estimated price for post of each influencer mentioning the analyzed account. In order to detect that we use influencer country, followers number, ER (engagement rate) and overall audience quality using machine learning trained on market values.
Please note that the actual price might be different.
You can check the budget spent on Sponsored and Likely Sponsored posts separately: