Exhibit 99.25 MBNA MASTER CREDIT CARD TRUST II SERIES 1998-C KEY PERFORMANCE FACTORS February 28, 2001 Expected B Maturity 6/16/03 Blended Coupon 5.7141% Excess Protection Level 3 Month Average 5.00% February, 2001 7.50% January, 2001 7.02% December, 2000 0.46% Cash Yield19.48% Investor Charge Offs 4.62% Base Rate 7.36% Over 30 Day Delinquency 5.13% Seller's Interest 8.26% Total Payment Rate13.44% Total Principal Balance$57,174,868,500.05 Investor Participation Amount$750,000,000.00 Seller Participation Amount$4,724,177,938.56