You hold the positions in the table below.

$\backslash$table$[[,$Price,Shares,Beta$],[$Amazon$.$com,$$60\mathrm{.}00,173,4\mathrm{.}36],[$Family Dollar Stores,$49\mathrm{.}00,217,2\mathrm{.}30],[$Mckesson Corp.,$62\mathrm{.}00,171,0\mathrm{.}78],[$Schering$-$Plough Corp.,$33\mathrm{.}00,471,0\mathrm{.}99]]$

What is the beta of your portfolio? $($Do not round intermediate calculations and round your final answer to $2$ decimal places.$)$

$\backslash$table$[[$Portfolio beta,$1\mathrm{.}65,\%$