Horniman horticulture And finally, using the sustainable growth and the economic profit formulas (below), what do you suggest the company's management should do? (Hint: profit vs. cash flow, Sustainable growth = ROC × LEV × Retention, and Economic profit = (ROC - Cost of capital) × Total capital). Where: LEV is leverage = Capital/NW (do a comparison between the firm's return on capital rates to cost of debt to decide what management should do)