Exhibit 99.4 MBNA MASTER CREDIT CARD TRUST II SERIES 1994-C KEY PERFORMANCE FACTORS April 30, 1998 Expected B Maturity 11/15/01 Blended Coupon 5.9746% Excess Protection Level 3 Month Average 5.30% April, 1998 5.73% March, 1998 5.65% February, 1998 4.53% Cash Yield 18.66% Investor Charge Offs 4.96% Base Rate 7.97% Over 35 Day Delinquency 5.03% Seller's Interest 14.63% Total Payment Rate 14.61% Total Principal Balance $ 35,947,972,379.88 Investor Participation Amount $ 1,000,000,000.00 Seller Participation Amount $ 5,259,577,861.39