Stewart Export Co. had the following Statement of Cash Flows for the year ended 03/31/15:

($ millions)	Year ended 3/31/15
Net Income	1100
Depreciation	200
Gain on sale of equipment	(400)
Chg in Accounts Receivable	350
Chg. in Inventory	(200)
Chg in Other Current Assets	100
Chg. in Accounts Payable	(50)
Chg. in Other Payables	150
Net Cash from Operations	1250
Capital Expenditures	(1200)
Sale of Equipment	700
Net Cash from Investing	(500)

What was the book value of the equipment Stewart sold during the year ended 03/31/15?