Use the following information on states of the economy and stock returns to calculate the expected return for Dingaling Telephone:

$($Do not round intermediate calculations. Enter your answer as a percent rounded to $2$ decimal places.$)$

$\backslash$table$[[$Probability of$],[\backslash$table$[[$State of$],[$Economy$]],\backslash$table$[[$State of$],[$Economy$]],\backslash$table$[[$Security Return$],[$if State Occurs$]]],[$Recession$,\mathrm{.}30,-8\mathrm{.}50\%$