Exhibit 99.44 MBNA MASTER CREDIT CARD TRUST II SERIES 1999-M KEY PERFORMANCE FACTORS August 31, 2000 Expected B Maturity 11/15/2004 Blended Coupon 6.6788% Excess Protection Level 3 Month Average 5.55% August, 2000 5.62% July, 2000 6.04% June, 2000 4.98% Cash Yield19.12% Investor Charge Offs 4.51% Base Rate 8.98% Over 30 Day Delinquency 4.84% Seller's Interest10.94% Total Payment Rate14.32% Total Principal Balance$55,220,806,818.68 Investor Participation Amount$500,000,000.00 Seller Participation Amount$6,039,606,300.19