Baek Ltd. must decide whether to make or buy some of its components. The costs of producing 60,000 switches for its generators are as follows.

Instead of making the switches at an average cost of W2,950 (W177,000,000 ÷ 60,000), the company has an opportunity to buy the switches at W2,700 per unit. If the company purchases the switches, all the variable costs and one-fourth of the fixed costs will be eliminated. 

(a) Prepare an incremental analysis showing whether the company should make or buy the switches. 

(b) Would your answer be different if the released productive capacity will generate additional income of W34,000,000? Determine incremental costs.

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Direct materials Direct labor W30,000,000 W42,000,000 Variable overhead #45,000,000 W60,000,000 Fixed overhead