X Company no longer has the space necessary to produce all of its parts. A company has offered to supply one of X Company's parts for $26.56 per unit. This year, production was 11,500 units; next year, production is expected to be 15,300 units. Total production costs for the part this year were:

Materials	$131,100
Direct labor	101,430
Variable overhead	66,240
Fixed overhead	24,495
Total	$323,265

$17,146 of X Company's fixed overhead cannot be avoided even if it buys the part. In addition, if X Company buys the part, it will be able to rent some equipment that will no longer be needed, to a company for $2,250.

X Company is uncertain about its 15,300 unit production estimate for next year. At what level of production would X Company be indifferent between making and buying the part next year?