Problem 2-12 Consider the three stocks in the following table. Pt represents price at time t, and Qt represents shares outstanding at time t. Stock C splits two for one in the last period. A B c 90 50 100 QO 100 200 200 Pi 95 45 110 Q1 100 200 200 P2 95 45 55 Q2 100 200 400 Calculate the first-period rates of return on the following indexes of the three stocks (t=0 to t= 1): (Do not round intermediate calculations. Round your answers to 2 decimal places.) a. A market value-weighted index. Rate of return % b. An equally weighted index. Rate of return %