Exhibit 99.25 MBNA MASTER CREDIT CARD TRUST II SERIES 1997-N KEY PERFORMANCE FACTORS October 31, 2000 Expected B Maturity 11/15/00 Blended Coupon 6.7875% Excess Protection Level 3 Month Average 5.92% October, 2000 6.36% September, 2000 5.82% August, 2000 5.59% Cash Yield 19.69% Investor Charge Offs 4.51% Base Rate 8.82% 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 $900,000,000.00 Seller Participation Amount $6,009,277,457.50