the following table shows total overheads of the company for the last five months.Apply high low method to evaluate equation for overheads; UNITS $ 1 19200 885,120 2 22080 960,000 3 21600 936,000 4 21120 956,160 5 20160 883,200 MY ANSWER IS 76,800+40X BUT IT SUGGEST THE ANSWER IS 385,920+26X.How??