The following table provides information on planned and actual inputs and outputs of an automotive service center in terms of standard hours of work. The beginning backlog is 14 standard hours of work. Determine the cumulative deviation and the backlog for each period:

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Week 4 5" 20 Planned input Actual input 30 30 30 30 32 34 25 28 25 Planned output 30 30 30 25 30 Actual output 28 22 30 28 30