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 Po 90 50 100 Oo 100 200 200 P1 95 45 110 Q1 100 200 200 P2 95 45 Q2 100 200 400 55 Calculate the first-period rates of return on the following indexes of the three stocks: (Do not round intermediate calculations. Round answers to 2 decimal places.) a. A market value-weighted index Rate of return % b. An equally weighted index Rate of return %