please help me solve. not on excel

WACC. Grey's Pharmaceuticals has a new project that will require funding of $4.9 million. The company has decided to pursue an all-debt scenario. Grey's has made agreements with four lenders for the needed financing. These lenders will advance the following amounts at the interest rates shown: Click on the Icon in order to copy its content into a spreadsheet. Amount Interest Rate Lender Steven 11% 8% Yang Shepherd Bailey $1,825,047 $1,378,601 $1,212,252 $484,100 6% 7% What is the weighted average cost of capital for the $4,900,000? What is the weighted average cost of capital for the $4,900,000? % (Round to two decimal places.)