SeptSeven has found that it is indifferent between purchasing a high-capacity vacuum
component assembly machine or a lower capacity machine as long as sales are 1,900 units per
month. The price of each calculator is $70. The high-capacity machine has cash expenses of
$100,000 per month and depreciation and amortization expenses of $30,000 per month, while
the alternative has cash expenses of $30,000 per month and depreciation and amortization
expenses of $5,000 per month. Under the low-capacity alternative, variable costs per unit are
$60. If the firm bases its decisions on the accounting operating profit break-even, then what is
the variable cost per unit under the high-capacity alternative?