An analyst working for a consulting firm develops a multiple regression model to forecast the gross profit margin on consulting projects. He runs a regression model with $5$ predictor variables using a sample of $40$ engagements. The output is attached. What proportion of the variability in engagement profit is explained by this model?

MR Output$2.$jpg

Group of answer choices

$62\%$

$42\mathrm{.}5\%$

$5\mathrm{.}5\%$

$39\%$

$\mathrm{.}14\%$

$100\%$