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.

P$0$ Q$0$ P$1$ Q$1$ P$2$ Q$2$

A $801008510085100$

B $402003520035200$

C $802009020045400$

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

b$.$ An equally weighted index