A firm reported comprehensive income of $$376$ million for $2012,$ consisting of $$500$ million in operating income $($after tax$)$ less $$124$ million of net financial expense $($after tax$).$ It also reported the following comparative balance sheet $($in millions of dollars$)$:

$$

Balance Sheet

$2012$

$2011$

$$

$2012$

$2011$

Operating cash

$60$

$50$

Accounts payable

$1,200$

$1,040$

Short$-$term investments $($at market$)$

$550$

$500$

Accrued liabilities

$390$

$450$

Accounts receivable

$940$

$790$

Long$-$term debt

$1,840$

$1,970$

Inventory

$910$

$840$

$$

$$

$$

Property and plant

$2,840$

$2,710$

Common equity

$1,870$

$1,430$

$$

$5,300$

$4,890$

$$

$5,300$

$4,890$

$$

$$

$$

$$

$$

$$

$$

$$

$$

$$

$$

$$

$$

Calculate free cash flow.

What is the price$-$to$-$book ratio for the firm$$s equity?

$0\mathrm{.}36$

$0\mathrm{.}64$

$1\mathrm{.}55$

$1\mathrm{.}0$

$25\%$