Based on the following information, calculate the profit margin.

Net sales revenue	$ 900,000
Bills	$500,000
Interest	$10,000
Income from tax expenses	$90,000
Net cash from operations	$290,000
Assets at the end of the current year	$600,000
Liabilities at the end of the current year	$100,000
Shareholders' equity at the end of the current year	$500,000
Assets at the end of the previous year	$ 590,000
Equity at the end of the previous year	$490,000
common shares outstanding	40,000 shares
current market price of shares	$15 per share

Based on the following information, calculate the price/earnings ratio.

Net sales revenue	$ 900,000
Bills	$500,000
Interest	$10,000
Income from tax expenses	$90,000
Net cash from operations	$290,000
Assets at the end of the current year	$600,000
Liabilities at the end of the current year	$100,000
Shareholders' equity at the end of the current year	$500,000
Assets at the end of the previous year	$ 590,000
Equity at the end of the previous year	$490,000
common shares outstanding	40,000 shares
current market price of shares	$15 per share