Selected comparative statement data for Tyrone Company are presented below. All balance sheet data are as of December 31.

_2017 2016_

Net sales $1,160,000 $1,120,000

Cost of goods sold 700,000 640,000

Interest expense 15,00010,000

Net income 150,000 140,000

Accounts receivable 140,000 120,000

Inventory 100,000 95,000

Total assets 780,000 700,000

Preferred stock (6%)200,000200,000

Total stockholders' equity 630,000 525,000

Instructions

Compute the following ratios for 2017.

(a) Profit margin.

(b) Asset turnover.

(c) Return on assets.

(d) Return on common stockholders' equity