If you were to pay back your entire balance, the full amount of your credit line would be available for withdrawal again. (ondeck.com)
As long as you have a good amount of credit lines open, and you are only closing new accounts, you shouldn't have any problems with your credit score dipping. (moneyboss.com)
Credit utilization is expressed as a percentage — or ratio — of the amount of debt that you have outstanding, divided by the total amount of your credit lines. (creditpilgrim.com)