Following are data for BioBeans and GreenKale, which sell organic produce and are of similar size.

BioBeans GreenKale

Average total assets $ $187,500$ $ $150,000$

Net sales $75,00060,000$

Net income $15,0009,000$

$1$a$.$ Compute the profit margin for both companies.

$1$b$.$ Compute the return on total assets for both companies.

$2.$ Based on analysis of these two measures, which company is the preferred investment?