Berg Industries is in the process of analyzing its manufacturing overhead costs. Berg Industries is not sure if the number of units produced or number of direct labour hours is the best cost driver to use for predicting manufacturing overhead costs. The following information is available:

Month. Manufacturing overhead cost. Units produced MOH Cost per Unit Produced

Direct Labour hours. MOH Cost per DL Hour

Month	Manufacturing Overhead Costs	Direct Labour Hours	Units Produced	MOH Cost per DL Hour	MOH Cost per Unit Produced
July ..................................	$460,000	23,000	3,600	$20.00	$127.78
August .............................	515,000	26,400	4,320	19.51	119.21
September .......................	425,000	19,000	4,200	22.37	101.19
October ............................	448,000	21,600	3,400	20.74	131.76
November ........................	527,000	27,000	5,750	19.52	91.65
December ........................	437,000	19,400	3,250	22.53	134.46

Requirements

1. Are manufacturing overhead costs fixed, variable, or mixed? Explain.
2. Graph Berg Industries MOH costs against DL hours. Use Excel or graph by hand.
3. Graph Berg Industries MOH costs against units produced. Use Excel or graph by hand.
4. Do the data appear to be sound, or do you see any potential data problems? Explain.
5. Use the high-low method to determine Berg Industries MOH cost equation using DL hours as the cost driver. Assume that management believes that all data are accurate and wants to include all of it in the analysis.
6. Estimate MOH costs if Berg Industries incurs 24,000 DL hours in January.

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