Exhibit 99.1 MBNA MASTER CREDIT CARD TRUST II SERIES 1994-A KEY PERFORMANCE FACTORS September 30, 1997 Expected B Maturity 9/15/99 Blended Coupon 5.8961% Excess Protection Level 3 Month Average 4.62% September, 1997 4.76% August, 1997 4.59% July, 1997 4.52% Cash Yield 17.46% Investor Charge Offs 4.80% Base Rate 7.90% Over 35 Day Delinquency 4.84% Seller's Interest 12.31% Total Payment Rate 12.46% Total Principal Balance $ 30,549,822,447.26 Investor Participation Amount $ 760,000,000.00 Seller Participation Amount $ 3,759,687,928.77