A physical quantity $Q$ is found to depend on quantities $a , b , c$ by the relation $Q = \frac { a ^ { 4 } b ^ { 3 } } { c ^ { 2 } }$. The percentage error in $a , b$ and $c$ are $3 \% , 4 \%$ and $5 \%$ respectively. Then, the percentage error in $Q$ is:\\
(1) $66 \%$\\
(2) $43 \%$\\
(3) $34 \%$\\
(4) $14 \%$