Compute the weighted - average cost of capital for Starbucks as of the start of Year +1.At the start of Year +1, Starbucks had $550 million in outstanding interest-bearing debt on the balance sheet and no preferred stock.Assume that the balance sheet value of Starbuck's debt is approximately equal to the market value of the debt.Assume that at the start of Year +1, Starbucks will incur interest expense of 6.25% on debt capital and that Starbucks' average tax rate is 33.0%.