The table given below shows how, on average, the market value of a Boelng $737$ has varled with its age and the cash flow needed in

each year to provide a $13\%$ return. $($For example, if you bought a $737$ for $$19\mathrm{.}77$ million at the start of year $1$ and sold It a year later, your

total profit would be $18\mathrm{.}03-4\mathrm{.}31-19\mathrm{.}77=$$$2\mathrm{.}57$ million, $13\%$ of the purchase cost.$)$

Assume airlines write off thelr alrcraft stralght$-$IIne over $15$ years to a salvage value equal to $10\%$ of the original cost.

a$.$ Calculate economic depreclation, book depreclation, economic return, and book return for each year of the plane's life. $($Leave no

cells blank $-$ be certain to enter $"0"$ wherever required. Do not round intermedlate calculations. Enter your answers in millions

except for percentage values. Round your percentage answers to $1$ decimal place and other answers to $2$ decimal places.$)$

b$-1.$ Suppose an airline Invested in a fixed number of Boelng $737$s each year. Calculate the steady$-$state book rate of return. $($Do not

round intermedlate calculations. Enter your answer as a percent rounded to $2$ decimal places.$)$