To follow is information about the units produced and total manufacturing costs for Pine Enterprises for the past six months. Month Number of units produced Total manufacturing costs January 9000 $8500 February 7,500 $8,000 March 6,600 $7,550 April 6,800 $7,650 May 4000 56700 June 7,000 $7,750 Using the high-low method, what is the monthly fixed manufacturing cost? (Round any intermediary calculations to the nearest cent.) $15,200 $1800 $5260 $3240