The controller of Carla Vista Production has collected the following monthly cost data for analyzing the behavior of electricity costs Determine the fixed costs and unit variable costs using the high-low method. Total fxed costs Variable cost per machine hour Your answer is correct. What electricity cost does the cost equation estimate for a level of activity of 450 machine hours? Electricity cost $ 5400 By what amount does this differ from March's observed cost for 450 machine hours? Amount differ 5 1830 eTextbook and Media Attempts: 1 of 3 used (c) What electricity cost does the cost equation estimate for a level of activity of 750 machine hours? Electricity cost By what amount does this differ from June's observed cost for 750 machine hours? Amount differ eTextbook and Media 5ive for Later Attempts: 0 of 3 used Submit Arower