A cost or expense ratio is not that hard to calculate. Basically its the operating expenses divided by the average value of assets under management. Many sites have calculators that make this easy.
You can compute cost to income by putting cost over the total income and dividing. You can also find a common denominator and get the ratio.
staff cost to income
operating expenses/operating income
The cost/income ratio is an efficiency measure similar to operating margin. Unlike the operating margin, lower is better. The cost income ratio is most commonly used in the financial sector. It is useful to measure how costs are changing compared to income - for example, if a bank's interest income is rising but costs are rising at a higher rate looking at changes in this ratio will highlight the fact. The cost/income ratio reflects changes in the cost/assets ratio. The cost income ratio, defined by operating expenses divided by operating income, can be used for benchmarking by the bank when reviewing its operational efficiency. Francis (2004) observes that there is an inverse relationship between the cost income ratio and the bank's profitability. Ghosh et al. (2003) also find that the expected negative relation between efficiency and the cost-income ratio seems to exist. The study shows that the cost-income ratio is negative and strongly significant in all estimated equations, indicating that more efficient banks generate higher profits.
breakeven = fixed cost / contribution margin ratiocontribution margin ratio = sales - variable cost / sales
A strong cost to income ratio is a low ratio, typically below 50%. This indicates that a company's operating costs are relatively low compared to its income, indicating efficient operations and good financial management. A low ratio suggests that a company is able to generate significant profits while keeping costs under control, which is favorable for investors and stakeholders.
How dose the cost income ratio is calculated in the banking model?
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RBI
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