If $\$$ denotes $+, \%$ denotes '$-$' and $\#$ denotes $*$ find the value of the following expression $8 \# 9 \$ 7 0 \% 3 2 \# 7 \$ 5 0$

Question

$\begin{array}{11} (a)\;850 \\ (b)\; 820 \\ (c)\; 740 \\ (d)\; -32 \end{array}$