Comparative balance sheets for Softech Canvas Goods for 2021 and 2020 are shown below. Softech pays no dividends and instead reinvests all earnings for future growth. Comparative Balance Sheets ($ in thousands) December 31 2021 2020 Assets: Cash $ 89 66 Accounts receivable 165 185 Short-term investments 76 66 Inventory 330 218 Property, plant, and equipment (net) 860 745 $1,520 $1,280 Liabilities and Shareholders' Equity: Current liabilities $ 370 $ 275 Bonds payable 225 225 Paid-in capital 595 595 Retained earnings 330 $1,520 185 $1,280 Required: 1. Determine the return on shareholders' equity for 2021. (Round your answer to 2 decimal places.) Return on shareholders' equity %