Exhibit 99.23 MBNA MASTER CREDIT CARD TRUST II SERIES 1997-K KEY PERFORMANCE FACTORS October 31, 2000 Expected B Maturity 11/15/05 Blended Coupon 6.7985% Excess Protection Level 3 Month Average 5.87% October, 2000 6.27% September, 2000 5.77% August, 2000 5.58% Cash Yield 19.62% Investor Charge Offs 4.51% Base Rate 8.84% Over 30 Day Delinquency 5.23% Seller's Interest 10.66% Total Payment Rate 14.07% Total Principal Balance $56,359,968,018.99 Investor Participation Amount $750,000,000.00 Seller Participation Amount $6,009,277,457.50