please answer the question, thank you. please answer the question, thank

35. ( 10 23. 3 ) Atlantic Iransport collects 15 percent of its monthly sales immediately and the rest at the end of the month ; has production costs that are 60 percent of sales ;" pays 50 percent of its bills immediately and the rest at the end of the month ; and has four months of sales in inventory . a . Calculate the break - even sales growth rate . b. Suppose that Atlantic Transport adopts a more efficient inventory policy that reduces the size of its inventory to three months of sales . Atlantic Transport also reduces its production costs to 5 5 percent of sales . What is the new break - even sales growth rate