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. P2 Q1 100 89 49 98 20 100 200 200 Pi 94 44 108 Q2 100 200 400 B 94 44 54 200 200 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 return % b. An equally weighted index Rate of return %