Payless Shoe Source, sells shoes and is famous for their buy one get one free annual sale. The advertising campaign costs $600,000. On average each shoe sells for $45 and Payless buys them for $10. They expect to sell an additional 35,000 shoes as a result of this campaign. What range does their ROMI fall into?

100%-110%

20%-30%

40%-50%

480%-490%