3/7 Big John's spent $4.06 saved 57%

10lb Potatoes = $1.99
Coke Zero = $2.00
Oreo Cakesters = $3.29
(2) Prairie Farms Sour Cream = $1.98

Used:
$1/2 Prairie Farms
Free Oreo Cakesters
$1 off any coke product

Total: $4.06
Saved: $5.29 or 57%