Consider the three stocks in the following table. Pe represents price at time t, and represents shares outstanding at time t. Stock C splits two-for-one in the last period. Po 00 100 200 200 P1 89 39 98 01 100 200 200 P2 89 39 49 02 100 200 400 88 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 %