Eric has another get rich quick idea, but needs funding to support it. He chooses an all debt funding scenario. He will borrow $3,690 from Wendy, who will charge him 9% on the loan. He will also borrow $3,010 from Bebe, who will charge 11% on the loan, and $2,300 from Shelly, who will charge him 17% on the loan. What is the weighted average cost of capital for Eric?