Exhibit 99.15 MBNA MASTER CREDIT CARD TRUST II SERIES 1996-C KEY PERFORMANCE FACTORS August 31, 1997 Expected B Maturity 4/16/01 Blended Coupon 5.8288% Excess Protection Level 3 Month Average 4.69% August, 1997 4.60% July, 1997 4.56% June, 1997 4.90% Cash Yield 17.46% Investor Charge Offs 4.84% Base Rate 8.02% Over 35 Day Delinquency 4.66% Seller's Interest 14.91% Total Payment Rate 12.37% Total Principal Balance $30,603,901,306.35 Investor Participation Amount $500,000,000.00 Seller Participation Amount $4,563,766,787.86