Consider an index that consists of stock A, B, and C. Calculate the index returns for case 1 using price-weighted and value-weight approaches, and index return for case 2 using equal weighted approach. (keep your numerical answers in 4 decimal places partial credits are possible if you type in your intermediate steps) Case 1 Case 2 Stock 98 PA Q1 $20 40 $25 40 $10 40 B B 80 100 40 200 75 100 50 200 55 200 25 400 ht