Problem $5-7($Algo$)$

A firm plans to begin production of a new small appliance. The manager must decide whether to purchase the motors for the

appliance from a vendor at $$9$ each or to produce them in$-$house. Either of two processes could be used for in$-$house production;

Process A would have an annual fixed cost of $$180,000$ and a variable cost of $$7$ per unit, and Process $B$ would have an annual fixed

cost of $$195,000$ and a variable cost of $$6$ per unit. Determine the range of annual volume for which each of the alternatives would be

best. $($Round your first answer to the nearest whole number. Include the indifference value itself in this answer.$)$