Butler Corporation has forecast production for the next four months as follows: July 17,100 units, August 18,700 units, September 20,000 units, and October 19,300 units. Manufacturing overhead is budgeted to be $24,000 (depreciation $3.200, supervision $8,200, factory lease $2,700, maintenance $5,200, training $4,700 ) plus $5 per unit produced ( $3 indirect materials, $2 utilities) Required