Exhibit 99.24 MBNA MASTER CREDIT CARD TRUST II SERIES 1996-M KEY PERFORMANCE FACTORS JUNE, 1998 Expected B Maturity 12/15/06 Blended Coupon 5.8789% Excess Protection Level 3 Month Average 5.17% June, 1998 4.68% May, 1998 4.89% April, 1998 5.92% Cash Yield 17.69% Investor Charge Offs 5.10% Base Rate 7.91% Over 35 Day Delinquency 5.06% Seller's Interest 12.61% Total Payment Rate 13.35% Total Principal Balance $ 35,974,950,178.51 Investor Participation Amount $ 500,000,000.00 Seller Participation Amount $ 4,536,555,660.02