If Lauscha Glass is deciding whether to give its customers longer to pay. Lauscha Glass is considering extending its credit period for 30 to 60 days. If it does this, it's collection period will extend from 35 to 65 days. Lauscha has $79,495,567 of sales annually. It will increase its sales by 30% if it makes the change. Its variable cost ratio is 75% Its pretax required rate of return is 15%. What will be Lauscha's cost of the additional investment in accounts receivable