Unused Fee In consideration of the Revolving Commitments of the Lenders hereunder, the Borrower promises to pay to the Administrative Agent for the account of each Lender a fee (the "Unused Fee") on the Unused Revolving Committed Amount computed at a per annum rate for each day during the applicable Unused Fee Calculation Period (hereinafter defined) at a rate equal to the Applicable Percentage in effect from time to time. The Unused Fee shall commence to accrue on the Closing Date and shall be due and payable in arrears thereafter on the last Business Day of each March, June, September and December (and on any date that the Revolving Committed Amount is reduced and on the Maturity Date) for the immediately preceding quarter (or portion thereof) (each such quarter or portion thereof for which the Unused Fee is payable hereunder being herein referred to as an "Unused Fee Calculation Period"), beginning with the first of such dates to occur after the Closing Date.