Using the following data and the High Low method, calculate the fol D Variable Cost per unit for February is $ 3) Total Variable Cost for April is $ 3) Total Fixed Cost for June is $_ Jan Feb Mar Apr May Jun Machine Hours 320 390 290 260 330 380 Total Electric Cost $2,440 $ 2,930 $2,230 $2,020 $ 2,510 $2,860