need help on requirement 3 - thanks!

Candy Rugs is holding a 2-week carpet sale at dack's Club, a local warehouse store. Candy Rugs plans to sol carpets for $850 each. The compary will purchase the carpets from a local distrbutor for $340 ach, with the priviege of retuming any unsold, unts for a full retund. Jacks Club has oflered Candy Rugs two payment atternatives for the use of space. (1) (Click the icon to vew the aditional informaton) Read the tequirements Requirement 3. Calcuiane the degree of operating leverage at sales of 185 units for the twe mental eptons