Company A's comparative balance sheets for 2020 and 2019 are shown below. Company A pays no dividends and instead reinvests all earnings for future growth.

Liabilities and Shareholder's Equity section of Comparative Balance Sheets
($ in millions)
	December 31
	2020	2019
Liabilities and Shareholders Equity:
Current Liabilities	$ 300	$ 250
Bonds payable	500	500
Common stock, $1 par	228	215
Paid-in capital	411	407
Retained earnings	328	224

Determine the return on shareholders' equity for 2020. Enter the percentage not as a percentage but as a 4 significant digit (0.XXXX). For example 16.23% would be written as 0.1623. Do not include the percentage sign.