Answer:
The company's cost savings is $10 per unit.
Step-by-step explanation:
Since the allocated fixed cost of $400,000 per year ($40 per unit) are unavoidable whether the company makes or buys this component, this will not be in the company's cost to determine the cost saving as follows:
Company's avoidable cost per unit = Variable costs per unit + Related fixed cost per unit = $109 + $1 = $110
Company's cost savings per unit = Company's avoidable cost per unit - Supplier's quotation per unit = $110 - $100 = $10 per unit
Total cost saving from normal production per year = 10,000 × $10 = $100,000
Total cost saving from normal production for the next 3 years = $100,000 × 3 = $300,000