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.
1 The average price of gas in South Carolina is $2.00 per gallon, and will likely fall below that mark before Labor Day weekend begins. 2  Average prices in Alabama and Mississippi also may fall below $2 per gallon over the next week.