Place the crab cakes into the oven on the broiler rack, right below the broiler, for around 12 minutes. Halfway through the 12 minutes, remove the crab cakes from the broiler rack, flip the crab cakes, and put them back under the broiler.
What is the 'Operating Expense Ratio - OER'. The operating expense ratio (OER) is a measure of what it costs to operate a piece of property compared to the income that the property brings in. The operating expense ratio is calculated by dividing a property's operating expense by its gross operating income and used for comparing the expenses of similar properties.
Calculating Operating Income. Operating income is derived from the revenue and operating expenses. Operating expenses include labor expenses and cost of goods sold. To get the operating income amount, you can add up all your operating expenses. Then subtract the operating expenses from the revenue. The resulting number is your operating income.