Help last question i dont understand.

Kingsport Containers. Company makes a single product that is subject to wide seosonal variations in demand. The compory uses a ob-order costing system and computes plantwide predetermined overhead rates on a quarterly basis using the number of unis to be produced as the allocation base. its estimated costs, by quarter, for the coming year are given below: Management finds the variation in quarterly unit product costs to be confusing it has been suggested mar une prumeriles whth Management finds the varation in quarterty unit product costs to be contusing it has been suggested that ue pen asked to find a more appropriate way of assigning manufacturing overhead cost to units of product. Required: 1. Assuming the estimated variable manufacturing overhead cost per unk is 50.40 , what must be the estimated totai fued manufacturing overhead cost per quarter? 2. Assuming the assumptions about cost behavior from the first three quarters hold constant, what is the estimated unt product cost for the fourth quarter? 3. What is causing the estimated unit product cost to fluctuate from one quarter to the next? 4. Assuming the company computes one predetermined ovetheod rate calculate the unit product cost for all units produced during the yesr. Complete this question by entering your answers in the tabs below. Assuming the company computes one predetermined overhead rate for the year rather than compuing duartery owechess rates, calculate the unit product cost for alions and found your finel anwer to 2 decimal places