Mastoiditis is the result of an infection that extends to the air cells of the skull behind the ear. Specifically, it is an inflammation of the mucosal lining of the mastoid antrum and mastoid air cell system inside the mastoid process.
Extract: Government spending has increased substantially in recent years. Consequently, the breakeven oil price rose to $106 a barrel in 2014 from $69 a barrel in 2010. As a result, with the large decline in oil prices, the fiscal deficit has increased sharply and is likely to remain high over the medium-term.
Using the same example, variable expenses of $0.80 are 40% of sales of $2.00 per unit ($0.80/$2.00). To calculate breakeven in dollars, divide its fixed expenses by the contribution margin ratio of 60% ($60,000/.6 = $100,000). This means that the company has to make $100,000 in sales to breakeven.