Exhibit 99.45 MBNA MASTER CREDIT CARD TRUST II SERIES 2000-B KEY PERFORMANCE FACTORS October 31, 2000 Expected B Maturity 2/18/03 Blended Coupon 6.7920% Excess Protection Level 3 Month Average 5.88% October, 2000 6.32% September, 2000 5.74% August, 2000 5.58% Cash Yield19.62% Investor Charge Offs 4.51% Base Rate 8.79% Over 30 Day Delinquency 5.23% Seller's Interest10.66% Total Payment Rate14.07% Total Principal Balance$56,359,968,018.99 Investor Participation Amount$750,000,000.00 Seller Participation Amount$6,009,277,457.50