Problem 2-20 Consider the three stocks in the following table. Pt represents price at time t, and 0t represents shares outstanding at time t. Stock C splits two-for-one in the last period. B C Pe 91 51 102 00 108 200 200 Pi 96 46 112 199 200 200 P2 96 46 56 02 100 200 400 Calculate the first-period rates of return on the following indexes of the three stocks: (Do not round intermediate calculations, Round your answers to 2 decimal places.) a. A market value-weighted index Rate of retum % b. An equally weighted index Rate of retum