The incubation period averages 8-12 hours, after which diarrhea and abdominal cramps begin. C. perfringens symptoms usually persist for one day. A severe complication, necrotic enteritis (also known as pig-bel syndrome), can develop if large numbers of bacteria are ingested.
Variable costing is a costing system under which those costs of production that vary with output are treated as product costs. This would usually include direct materials, direct labor and variable portion of manufacturing overhead. Fixed manufacturing cost is not treated as a product costs under variable costing.
Managers often assume that unit product costs are variable costs. This is a problem under absorption costing, since unit product costs are a combination of both fixed and variable costs. Under variable costing, unit product costs do not contain fixed costs.nder absorption, the fixed costs are mingled together with the variable costs and are buried in cost of goods sold and in ending inventories. Variable costing data make it easier to estimate the profitability of products, customers, and other segments of the business.