Madengrad Company manufactures a single electronic product called Precisionmix. This unit is a batch-density monitoring device attached to large industrial mixing machines used in flour, rubber, petroleum, and chemical manufacturing. Precisionmix sells for $900 per unit. The following variable costs are incurred to produce each Precisionmix device:
Direct labor $180
Direct materials 240
Factory overhead 105
Variable production costs 525
Marketing costs 75
Total variable costs $600
Madengrads income tax rate is 40%, and annual fixed costs are $6,600,000. Except for an operating loss incurred in the year of incorporation, the firm has been profitable over the last 5 years. For Madengrad Company to achieve an after-tax net income of $540,000, annual sales revenue must be