Average per category

Hi everyone, I'm stuck on a formula in Power Bi and maybe one of you can help ! In the image below, you see on the left the average of bags depending on the typology of a municipalities (which is calcultated as :  number of bags collected / number of participants) an I would like to apply those 3 values to each municipality based on its typology. When I try it it breaks in different values as you can see in the table on the right. Does anyone know which formula I could use ?

Thanks a lot 🙂