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. Once complete, the crab cakes should appear golden brown.
Operational efficiency. In a business context, operational efficiency can be defined as the ratio between an output gained from the business and an input to run a business operation. When improving operational efficiency, the output to input ratio improves.
Calculating the Operating Margin. To calculate the operating margin, divide operating income by the total revenue. Operating Income Ã· Sales = Operating Margin. Just as you learned with the gross profit margin, what is considered good depends on the industry. There is one extremely important thing you must learn, though.