Cullumber Enterprises is considering manufacturing a new product. It projects the cost of direct materials and rent for a range of output as follows. Question 8 of 10 Determine the relevant range of activity for this product based on the cost behavior of each input. The relevant range of activity for this product units. eTextbook and Media (c) Your answer is incorrect. Calculate the unit variable costs within the relevant range. (Round answer to 2 decimal places eg. 2.25.) S Unit variable cost for direct materials $ per unit