Solve the Problem $\$ 1834$ And the Selling Price Is $\$ 4634$

Solve the problem.
-What is the markup percent on a diamond for which the markup is $\$ 1834$ and the selling price is $\$ 4634$ ?

A) $64 \frac{1}{2} \%$
B) $67 \frac{3}{4} \%$
C) $65 \frac{1}{2} \%$
D) $60 \%$