Asset Turnover. A ratio of a company's net sales to total assets. It is a measure of how efficiently management is using the assets at its disposal to promote sales.A high ratio indicates that the company is using its assets efficiently to increase sales, while a low ratio indicates the opposite.sset turnover measures a firm's efficiency at using its assets in generating sales or revenue; the higher the number, the better. It also reflects pricing strategy; companies with low profit margins tend to have high asset turnover, whereas those with high profit margins have low asset turnover.