Calculate the Weighted Average $5 \%$ Of the Final Grade, a Midterm Paper Counted As

Calculate the weighted average.
-Boris enrolled in a course where attendance counted as $5 \%$ of the final grade, a midterm paper counted as $35 \%$ of the final grade, and a final paper counted as $60 \%$ of the final grade. He had $81 \%$ attendance. He earned a score of $75 \%$ on the midterm paper and a $83 \%$ on his final paper. What is Boris' final average? If necessary, round to the nearest hundredth.

A) $84.15 \%$
B) $30.9 \%$
C) $81.9 \%$
D) $80.1 \%$