Problem 18-01A The controller of Sunland Production has collected the following monthly expense data for analyzing the cost behavior of electricity costs. January February March April May 3,160 Total Total Electricity Costs Machine Hours $2,490 250 3,000 320 3,530 460 4,740 695 450 4,900 790 4,130 625 3,890 590 5,170 680 4,220 610 3,290 320 810 June July August September October November December 6,410 Determine the fixed- and variable-cost components using the high-low method. Fixed-costs $ Variable-costs LINK TO TEXT LINK TO VIDEO What electricity cost does the cost equation estimate for a level of activity of 460 machine hours? Electricity costs By what amount does this differ from March's observed cost for 460 machine hours? Amount differ What electricity cost does the cost equation estimate for a level of activity of 790 machine hours? Electricity costs $ By what amount does this differ from June's observed cost for 790 machine hours? Amount differ Click if you would like to Show Work for this question: Open Show Work