To find which one is the more economical purchase, we must get them both to cost per ounce.
To do this, we take the cost, and divide it by the ounces.
$1.69/12= $.14 per ounce for Barilla
S2.75/24= $.11 per ounce for Field
Since $.14 per oz is more than $.11 per oz, that makes Field more a economical purchase.
Have an astounding day!