Amazon has the 15.25oz Duncan Hines Cake Mix (Classic Yellow) for $1.09 - 5% off with Subscribe & Save (can cancel at any time) -15% off coupon (check “Save an extra” box, eligible on first S&S order for this product)= $0.87 with free shipping on $35+ or with Prime.

Other Duncan Hines Cake Mixes (price is after coupon & S&S): 

• 15.25 oz Red Velvet Cake Mix for $1.37
• 15.25oz Classic White Cake Mix for $1.26
• 18.3oz Chewy Fudge Brownie Mix for $1.38
• 14oz Duncan Hines Whipped Frosting for $1.67
• 15.25oz Classic Dark Chocolate Fudge Cake Mix for $1.25
• 15.25oz Strawberry Supreme Flavored Cake Mix for $1.38
• 15.25oz Perfectly Moist Butter Recipe Fudge Mix for $1.26
• 15.25oz Signature Perfectly Moist Carrot Cake Mix for $2.29