Refer the following table.

Airspace Technologies Inc.
Comparative Balance Sheet Information
November 30
(millions of $)
	2020				2019				2018
Cash	$	75			$	26			$	38
Accounts receivable (net)		124				62				50
Inventory		206				242				202
Prepaid rent		86				50				38
Plant and equipment (net)		860				838				830
Accounts payable		110				67				57
Accrued liabilities		98				134				91
Income tax payable		31				19				26
Preferred shares		134				134				134
Common shares		254				254				254
Retained earnings		612				568				610

Airspace Technologies Inc.
Income Statement
For Year Ended November 30
(millions of $)
	2020				2019
Net sales	$	1,480			$	1,264
Cost of goods sold		526				454
Gross profit	$	954			$	810
Operating expenses:
Depreciation expense	$	76			$	76
Other expenses		508				352
Total operating expenses		584				428
Profit from operations	$	370			$	382
Interest expense		45				35
Income tax expense		52				54
Profit	$	273			$	293

Required: Calculate Airspace's liquidity and efficiency ratios for 2020 and 2019. (Round the final answers to 2 decimal places. Use 365 days a year.)

Analysis Component: Identify whether the change in each ratio from 2019 to 2020 was favourable or unfavourable.