18. Calculate the turn for the year given the following information: Sales Beginning inventory February $1,250 $8,600 March $1,000 $7,400 April $1,025 $6,900 May $1,400 $8,150 June $1,100 $7,650 July $900 $7,500 August $1,500 $7,400 September $1,700 $7,600 October $1,800 $7,700 November $1,900 $8,800 December $2,200 $9,400 January $800 $7,400 January end $8,000