Blossom and Telecommunications Corporation has three divisions. The names of these divisions, along with the after$-$tax cost of

capital for each division and the market value of the assets in each division, are as follows:

What is the overall after$-$tax cost of capital for Blossom and Telecommunications? $($Round answer to $2$ decimal places, e$.$g$.52\mathrm{.}75\%.)$

After$-$tax cost of capital