Northwest Family Clinic provides the following income statement for the most recent period:

Income Statement
Revenues:
Net patient service revenue		$366,000
Operating Expenses:
Medical services	$141,000
Support services	91,000
General services	82,000
Depreciation	43,600	(357,600)
Operating Income		8,400
Other Income and Expenses:
Interest income	42,800
Interest expense	25,200	17,600
Net Income		$26,000

Additional information:

Percentage of revenues on credit: 70%

Maximum annual debt service: $24,800

What is the clinic's Debt Service Coverage Ratio?