Consider the three stocks in the following table. Pt represents price at time t, and et represents shares outstanding at time t. Stock C splits two-for-one in the last period. P2 Q2 97 57 114 102 lo 100 200 200 Pi 102 52 124 Ol 100 200 200 100 200 400 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 return b. An equally weighted index Rate of return %