A physical quantity \( C \) is related to four other quantities \( p, q, r \) and \( s \) as follows
\( C = \dfrac{p q^{2}}{r^{3}\sqrt{s}} \).
The percentage errors in the measurement of \( p, q, r \) and \( s \) are \( 1\% \), \( 2\% \), \( 3\% \) and \( 2\% \) respectively.
The percentage error in the measurement of \( C \) will be __________ \( \% \).
