3. Vortex Inc. has issued 3 year maturity , 14 % coupon bonds bonds with a total nominal value o 500 millions $. The bonds were sold at 10 % discount and floatation costs amounted to 7% of total nominal value. The principal will be repaid in equal installments after one year of nonpayment. Compute the cost of this bond issue. Corporate income tax rate is 22 %. Try 20 % first