Exhibit 99.4 MBNA MASTER CREDIT CARD TRUST II SERIES 1994-D KEY PERFORMANCE FACTORS October 31, 1997 Expected B Maturity 11/17/97 Blended Coupon 5.98900% Excess Protection Level 3 Month Average 61.36% October, 1997 174.84% September, 1997 4.77% August, 1997 4.47% Cash Yield 244.88% Investor Charge Offs 61.44% Base Rate 8.59% Over 35 Day Delinquency 4.76% Seller's Interest 13.78% Total Payment Rate 14.00% Total Principal Balance $ 31,941,631,051.83 Investor Participation Amount $ 75,000,000.00 Seller Participation Amount $ 4,401,496,533.34