Vanable Costing-5ales Exceed Production The beginning inventory is 12,600 units. All of the units that were manufactured during the period and 12,600 units of the beg inning inventory were sold. The beginning inventory fixed manufacturing costs are Is4 per unit, and vanable manufacturing cots ore $103 per unit. a. Determine whether varable costing operating income is less than or dreater than absonacion cost ng operating income. b. Detemmine the difference in vanable costing and absorption costiog cperabieg insome..