Exhibit 99.1 MBNA MASTER CREDIT CARD TRUST II SERIES 1994-C KEY PERFORMANCE FACTORS April 30, 2000 Expected B Maturity 11/15/01 Blended Coupon 6.4205% Excess Protection Level 3 Month Average 5.75% April, 2000 5.39% March, 2000 5.78% February, 2000 6.08% Cash Yield 18.08% Investor Charge Offs 4.70% Base Rate 7.99% Over 30 Day Delinquency 4.72% Seller's Interest 10.74% Total Payment Rate 13.82% Total Principal Balance $ 52,271,464,953.72 Investor Participation Amount $ 1,000,000,000.00 Seller Participation Amount $ 5,612,664,435.23