Saundra B. owns a small manufacturing facility used to make scented candles. Saundra has compiled the following information about her electricity costs: Machine Hours Total Electricity Costs January 1,250 $6,080 February 1,400 $5,800 March 1,000 $5,300 April 850 $4,000 May 900 $4,960 June 600 $3,400 July 750 $3,600 August 1,100 $4,800 September 1,150 $5,200 October 415 $1,850 November 400 $2,000 December 860 $4,300 Using the high-low method, what is the estimated fixed cost for Saundra's electricity costs? $480 $158 $252 $375