In $2020,$ Caterpillar Incorporated had about $540$ million shares outstanding. Their book value was $$25\mathrm{.}36$ per share, and the market price was $$153\mathrm{.}70$ per share. The company$$s balance sheet shows that the company had $$26\mathrm{.}7$ billion of long$-$term debt, which was currently selling near par value.

What was Caterpillar$$s book debt$-$to$-$value ratio?

Note: Do not round intermediate calculations. Enter your answer as a decimal rounded to $2$ decimal places.

What was its market debt$-$to$-$value ratio?

Note: Do not round intermediate calculations. Enter your answer as a decimal rounded to $2$ decimal places.

Which measure should you use to calculate the company$$s cost of capital?

NOTE: $0\mathrm{.}66($for book debt to value ratio$)$and $0\mathrm{.}24($for market debt to value ratio$)$is incorrect