Alejandro Alvera of Alvear Corp was reading the financial statements of Olivas Medical Supply Company to decide whether he wanted to try to acquire the company. He noticed some mistakes in the Olivas Income Statement:

($ millions)	Year ended 12/31/15
Sales revenue	$1600
Interest Revenue	50
Total Revenue	1650
Cost of Goods Sold	(800)
Gross Profit	850
SG&A Expense	(400)
Interest Expense	(50)
Operating Income	400
Gain on sale of equipment	200
Pre-tax income	600
Income Tax Expense	(216)
Net Income	384

What is Olivas' Operating Income for the year ended 12/31/2015 after correcting the mistakes?

$450

$600

$550

$400

$350