Solve Each Problem $1.7 \%$ B) $40 \%$ C) $60 \%$ D) $166.7 \%$

Solve each problem.
-What percent of 420 chairs is 252 chairs?

A) $1.7 \%$
B) $40 \%$
C) $60 \%$
D) $166.7 \%$