Consider the three stocks in the following table. Pe represents price at time t, and Qe represents shares outstanding at time t Stock C splits two-for-one in the last period. Pe Qe P1 81 P Q2 A 81 100 86 100 86 100 B 41 200 36 200 36 200 C 82 200 92 200 46 400 Required: 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 %