Freeline Therapeutics Holdings Plc Return on Sales (ROS) is -8,027.65% for the year ending December 31, 2023, a 44.33% change year over year. Return on sales (ROS) measures the profitability of a company relative to its revenue. It is calculated by dividing the net income by the revenue. This ratio indicates the company's profitability margin or the proportion of each dollar of revenue that translates into net income. A higher return on sales suggests better profitability and efficient cost management.