X Company is considering a modification to one of its main products next year that would make it more attractive to customers. As a result, X Company could increase the selling price by $2.38. However, fixed costs would increase to $16,910. Financial information for the product for this year is as follows:

Selling price $9.08

Variable costs $3.40

Fixed costs $11,910

At what unit sales level would X Company be indifferent between modifying the product and not modifying it?