Answer:
The effect of purchasing thermostat from Flurry Co. on Blowing Sand's annual total cost: it will rise by $45,000
Explanation:
Blowing Sand fixed cost allocated to thermostat manufacture : Fixed cost allocated to a unit x Manufactured Amount = $2.5 x 30,000 = $75,000
If Blowing Sand continues to manufacture thermostat component, the total cost relating to this activity will be: Unit cost x Manufactured Amount = $5 x 30,000 = $150,000
If Blowing Sand outsources the manufacture to Flurry Co., the total cost relating to this activities will include: Cost paid to Flurry Co. for the Manufacture of 30,000 thermostat + Fixed cost allocated to thermostat manufacture ( because Blowing Sand has no other possible uses for the area dedicated to thermostat production, thus fixed cost can not be saved). Thus the total cost for this option will be: 4 x 30,000 + 75,000 = $195,000
So, the if Blow sand continues to product thermostat component, the cost will be $45,000 lower comparing the outsourcing option, i.e: $150,000 in comparison to $195,000 respectively.