Please help me with this question's and show appropriate solution steps for the numeric parts.

Q1 Suppose that nine grocery shops have market share in the local clothing market as 7, 12, 3, 14, 23, 16, 11, 5 and 9 percent (as percentages of total quantity of clothes sold). )9 What is the four-rm concentration ratio and HHI? What is the type of concentration? Why? 2 marks Four Firm Concentration Ratio: HHI = Type of concentration: > If the top 3 sellers combined to form a single rm, what would happen to the four-rm concentration ratio and to the HHI? Is there any change in the type of concentration? Why? 2 marks Four Firm Concentration Ratio: HHI = Type of concentration