Exhibit 99.1 MBNA MASTER CREDIT CARD TRUST II SERIES 1994-A KEY PERFORMANCE FACTORS April 30, 1997 Expected B Maturity 9/15/99 Blended Coupon 5.8988% Excess Protection Level 3 Month Average 4.99% April, 1997 3.78% March, 1997 5.81% February, 1997 5.39% Cash Yield 16.23% Investor Charge Offs 4.55% Base Rate 7.90% Over 35 Day Delinquency 4.27% Seller's Interest 20.02% Total Payment Rate 12.21% Total Principal Balance $ 27,182,850,184.68 Investor Participation Amount $ 760,000,000.00 Seller Participation Amount $ 5,443,222,666.19