Stock $M$ and Stock $N$ have had the following returns for the past three years: $23$ percent, $-21$ percent, $43$ percent; and $26$ percent, $17$ percent, and $35$ percent, respectively. Calculate the covariance between the two securities$.($Ignore the correction for the loss of a degree of freedom set out in the text.$)$

Multiple Choice

$-165\%$

$192\%$

$382\%$

$-382\%$