Definition of efficiency gain. Normally measured by looking at the relationship between cost and earnings. If cost goes down and earnings are flat, or if cost is flat but earnings go up, the company has made gains in efficiency. Print.
The average Regular gas price in Columbia, SC is $1.97, which is $0.82 lower than U.S. national average Regular gas price $2.79. The lowest Regular gas price is $1.67 of Exxon located at 941 Longtown Rd, Columbia, SC 29229. The highest Regular gas price is $2.16 of Shell located at 831 Harden St, Columbia, SC 29205.
The least populous county is McCormick County, with only 9,958 residents, while the most populous county is Greenville County, with a population of 451,225, despite the state's most populous city, Columbia, being located in Richland County.n 1800, all counties were renamed as districts. In 1868, the districts were converted back to counties. The South Carolina Department of Archives and History has maps that show the boundaries of counties, districts, and parishes starting in 1682.