f. Preventive maintenance of equipment 55,000
g. Breakdown maintenance of equipment 75,000
Required:
1. Classify each cost as value-added, non-value-added, or in the gray area between.
2. For any cost classified in the gray area, assume 60% is value-added and 40% is
non-value-added. How much of the total of all seven costs is value-added and how much is
non-value-added?
3. Magill is considering the following changes: (a) introducing quality-improvement programs
whose net effect will be to reduce rework and expediting costs by 40% and materials and
labor costs for servicing machine tools by 5%; (b) working with suppliers to reduce
materials-procurement and inspection costs by 20% and materials-handling costs by 30%; and
(c) increasing preventive-maintenance costs by 70% to reduce breakdown-maintenance costs
by 50%. Calculate the effect of programs (a), (b), and (c) on value-added costs,
non-value-added costs, and total costs. Comment briefly.
SOLUTION
(25–30 min.) Value-added, nonvalue-added costs.
1.
Category Examples
Value-added costs a. Materials and labor for regular repairs $1,100,000
Classifications of value-added, nonvalue-added, and gray area costs are often not clear-cut.
Other classifications of some of the cost categories are also plausible. For example, some
students may include materials handling, materials procurement, and inspection costs and
2. Total costs in the gray area are $180,000. Of this, we assume 60%, or $108,000, are
value-added and 40%, or $72,000, are nonvalue-added.
Total value-added costs: $1,100,000 + $108,000 $1,208,000
13-4