Consider the three stocks in the following table. Pt represents price at time t, and Ot represents shares outstanding at time t. Stock C splits two for one in the last period. 22 00 A B PO 75 70 140 Q0 85 170 170 P1 85 65 145 Q1 85 170 170 P2 85 65 75 85 170 340 Calculate the first-period rates of return on the following indexes of the three stocks (t=0 to t= 1): (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 %