Using High-Low, predict total costs in a month in which 10,000 units are produced.

The manager of the fabrication department provides production and Total costs data from last year. Production Month (Q) Total costs (TC) January 4,300 18,800 February 3,000 14,920 March 2,800 14,300 April 2,500 13,200 May 1,850 11,480 June 2,000 12,100 July 2,400 13,300 August 2,500 13,150 September 1,600 11,900 October 3,200 12,300 November 4,800 19,870 December 4,200 17.900