Exhibit 99.27 MBNA MASTER CREDIT CARD TRUST II SERIES 1997-I KEY PERFORMANCE FACTORS October 31, 1998 Expected B Maturity 8/16/04 Blended Coupon 6.4506% Excess Protection Level 3 Month Average 5.62% October, 1998 6.06% September, 1998 4.43% August, 1998 6.37% Cash Yield18.93% Investor Charge Offs 4.98% Base Rate 7.89% Over 35 Day Delinquency 5.16% Seller's Interest 8.67% Total Payment Rate14.28% Total Principal Balance$39,561,435,127.71 Investor Participation Amount$750,000,000.00 Seller Participation Amount$3,431,640,609.22