Exhibit 99.27 MBNA MASTER CREDIT CARD TRUST II SERIES 1997-I KEY PERFORMANCE FACTORS February 28, 1998 Expected B Maturity 8/16/04 Blended Coupon 6.4832% Excess Protection Level 3 Month Average 4.95% February, 1998 4.70% January, 1998 4.88% December, 1997 5.25% Cash Yield16.74% Investor Charge Offs 4.83% Base Rate 7.21% Over 35 Day Delinquency 5.04% Seller's Interest15.07% Total Payment Rate12.54% Total Principal Balance$34,488,564,555.67 Investor Participation Amount$750,000,000.00 Seller Participation Amount$5,197,230,037.18