Assume that Kubin Company produced $20,000$ units and expects to sell $19,800$ of them. If a new customer unexpectedly emerges and expresses interest in buying the $200$ extra units that have been produced by the company and that would otherwise remain unsold, what incremental selling and administrative cost per unit is incurred to sell these units to the customer?Assume that Kubin Company produced $20,000$ units and expects to sell $19,800$ of them. If a new customer unexpectedly emerges and expresses interest in buying the $200$ extra units that have been produced by the company and that would otherwise remain unsold, what incremental selling and administrative cost per unit is incurred to sell these units to the customer?