Solar System Inc. has provided you with the following information:

Account	2022	2021
Cash	$ 21,000	$ 47,000
Short-term (trading) investments	28,000
Accounts receivable	102,000	116,000
Inventory	86,000	64,000
Prepaid expenses	11,000	9,000
Total assets	1,503,000	1,489,000
Total current liabilities	205,000	241,000
Net sales, all on credit	877,000	850,000
Cost of goods sold	570,000	555,000
Operating income	165,000	158,000
Income tax expense	20,000	18,000
Net income	109,000	100,000
Interest expense	36,000	40,000
Common shares (no preferred)	420,000	420,000
Retained earnings	153,000	74,000

Required

Calculate the following ratios for 2022. Round all values to two decimals (eg 34.56%) Show all calculations.

1. Profit margin on sales
2. Quick (acid-test) ratio
3. Receivables turnover
4. Debt to total assets
5. Times interest earned
6. Rate of return on assets
7. Rate of return on common share equity