Primary Cause of Necrotizing fasciitis. The primary cause of Necrotizing fasciitis is the result: 1  of transmission from another person under rare circumstances, such as immunocompromised people or during surgery with contaminated surgical tools, or according to rare circumstances as noted from reputable sources.o research the causes of Necrotizing fasciitis, consider researching the causes of these these diseases that may be similar, or associated with Necrotizing fasciitis: 1  Fournier gangrene. 2  Meleney's ulcer. 3  Meleney ulcer. 4  Postoperative progressive bacterial synergistic gangrene. 5  Flesh-eating bacteria. 6  Cullen's ulcer.
How to Calculate Monthly Accumulated Depreciation. Depreciation can be calculated on a monthly basis by two different methods. Over time, the assets a company owns lose value, which is known as depreciation. As the value of these assets declines over time, the depreciated amount is recorded as an expense on the balance sheet.
Subtract the accumulated depreciation from the asset's cost. To arrive at the book value, simply subtract the depreciation to date from the cost. In the example above, the asset's book value after 6 years would be (10,000 - 6000) or $4000.. Calculate the straight-line depreciation expense. This is used when the same amount is expensed each period until the asset is fully depreciated. For example, if a piece of equipment was purchased for $10,000, and it has an expected life of 10 years, then the annual depreciation expense would be $1000.