please help me!!

A company manufactures various-sized plastic bottles for its medicinal product. The manusacturing cost for small bottles is $75 per unit (100 bottles). including fixed costs of $28 per unit. A proposal is offered to purchase small botties from an outside source for $40 per unit, plus $4 per unit for freight: a. Prepare a differential analysis dated July 31 to determine whether the company should make (Alernative 1) or buy (Alternative 2) the botties, assuming fixed costs are unaffected by the decision. If an amount is zero, enter " 0 . " Use a minus sign to indicate a loss. b. Determine whether the company should make (Altemative 1) or buy (Alemative 2) the botties