Launch This Resource. In 1950, Erwin Chargaff published a paper stating that in the DNA of any given species, the ratio of adenine to thymine is equal, as is the ratio of cytosine to guanine. This became known as Chargaff's ratio, and it was an important clue for solving the structure of DNA. Downloads. Downloads.
The average annual overhead for a dental office (not including the dentistâs salary) is $350,000. The average clinician works 33 hours per week for 48 weeks, which is 1,600 hours per year. By taking the $525,000 average annual revenue and dividing it by 1,600 hours, we get $312 an hour to keep the office operating profitably.
How to Benchmark: Once you have calculated your overhead rate, compare it with the median levels reported by peer practices in your specialty. For example, the Medical Group Management Association (MGMA) Cost Surveys report the specialty-specific overhead rates that can be used for benchmark comparison. For pediatric practices, the typical overhead rate approximates 60%; for orthopedic surgery practices, the overhead rate is lower, at 45%.