Month	Hospital Overhead Cost	Nursing Hrs	# of Patient Days	Overhead Cost Per Nursing Hrs	Overhead cost Per Patient Day
July	965,000	51,000	8,000	18.92	120.63
August	1,000,000	53,000	9,000	18.86	111.11
September	830,000	38,000	8,750	21.84	94.86
October	925,000	43,000	7,000	21.51	132.14
November	1,100,000	65,000	12,000	16.92	91.67
December	900,000	42,000	7,900	21.42	113.92

Using the high-low method, determine the hospitals variable cost per nursing hour, rounded to two decimal places.