Refer the following table.

Airspace Technologies Inc.
Comparative Balance Sheet Information
November 30
(millions of $)
	2020				2019				2018
Cash	$	62			$	13			$	25
Accounts receivable (net)		111				49				37
Inventory		193				229				189
Prepaid rent		73				37				25
Plant and equipment (net)		730				773				817
Accounts payable		97				54				44
Accrued liabilities		85				121				78
Income tax payable		18				6				13
Preferred shares		121				121				121
Common shares		241				241				241
Retained earnings		599				555				597

Airspace Technologies Inc.
Income Statement
For Year Ended November 30
(millions of $)
	2020				2019
Net sales	$	1,220			$	1,004
Cost of goods sold		461				389
Gross profit	$	759			$	615
Operating expenses:
Depreciation expense	$	50			$	50
Other expenses		482				326
Total operating expenses		532				376
Profit from operations	$	227			$	239
Interest expense		19				9
Income tax expense		26				28
Profit	$	182			$	202

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.