Filer Manufacturing has $11$ million shares of common stock outstanding. The current share price is $$68,$ and the book value per shares is $$6.$ Filer Manufacturing also has two bond issues outstanding $.$ The first bond issue has a face value of $ $70$ million has a $7$ percent coupon and sells for $93\%$ of par. The second issue has a face value of $$55$ million $,$ has an $8\%$ coupon, and sells for $104$ percent of par. The first issues matures in $21$ years, the second in $6$ years.

a$)$ What are filer's capital structure weight in book value basis?

b$)$ What are filer's capital structure weight on a market value basis?

c$)$ What is more relevent the book value or market value weights