! Required information [The following information applies to the questions displayed below.] Phillips Company manufactures air-conditioning units for commercial buildings and has noticed considerable variation in shipping expenses from month to month as per the data below: Month January February March April May June Units Total Shipping Shipped Expense 4 4523600 $2,080 $2,980 $2,450 $1,272 $2,100 $2,820 July 8 $4,032 9. Given the facts in part 3-8, estimate the total contribution margin for August if seven air conditioners are produced and sold. Total contribution margin