Exhibit 99.1 MBNA MASTER CREDIT CARD TRUST II SERIES 1994-C KEY PERFORMANCE FACTORS September 30, 1999 Expected B Maturity 11/15/01 Blended Coupon 5.6705% Excess Protection Level 3 Month Average 5.83% September, 1999 5.73% August, 1999 5.88% July, 1999 5.88% Cash Yield 18.00% Investor Charge Offs 4.60% Base Rate 7.67% Over 30 Day Delinquency 4.90% Seller's Interest 6.99% Total Payment Rate 14.16% Total Principal Balance $ 45,780,732,257.76 Investor Participation Amount $ 1,000,000,000.00 Seller Participation Amount $ 3,198,912,739.27