Suppose your company needs $12 million to build a new assembly line. Your target debt-equity ratio is .62. The flotation cost for new equity is 7.5 percent and the flotation cost for debt is 4.7 percent. Your boss has decided to fund the project by borrowing money because the flotation costs are lower and the needed funds are relatively small. What is your companys weighted average flotation cost, assuming all equity is raised externally? Please round to one place past the decimal point and format answer in a percentage as "X.XX"