A dress was initially listed at a price that would have given the store ... ...

A dress was initially listed at a price that would have given the store a profit of 20 percent of the wholesale cost. The dress sold for 50 dollars. What was the wholesale cost of the dress?
(A)    100
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Nova Math - Problem Set X: Word Problems