The following table shows betas for several companies. Calculate each stock$$s expected rate of return using the CAPM. Assume the risk$-$free rate of interest is $5\%.$ Use a $12\%$ risk premium for the market portfolio. $($Do not round intermediate calculations. Enter your answers as a percent rounded to $2$ decimal places.

Company Beta Cost of Capital

Cisco $1\mathrm{.}68$

Apple $1\mathrm{.}23$

Hershey $0\mathrm{.}45$ Coca cola $0\mathrm{.}79$ In addition, assuming that a financial investor is building its portfolio, with the following allocation: Cisco $30\%,$ Apple $40\%,$ Hershey $10\%$ and Coca Cola $29\%,$ calculate the beta porfolio. Interpret results obtained.