The Cost of Debt and Flotation Costs.

Suppose a company will issue new $25-$year debt with a par value of $$1,000$ and a coupon rate of $8\%,$ paid annually. The issue price will be $$1,000.$ The tax rate is $25\%.$ If the flotation cost is $3\%$ of the issue proceeds, then what is the after$-$tax cost of debt? Round your answer to two decimal places.

$6\mathrm{.}19\%-$Correct

What if the flotation costs were $11\%$ of the bond issue? Round your answer to two decimal places.

$6\mathrm{.}74\%-->$This is wrong, I hand calculated both and still second wrong? I don$$t mind answer given in excel.