Ok, just did the math with what I want to buy. eight 6-roll boxes of 8" rolls which retail for 67, are on sale for 49.99, are discounted 30 percent for buying eight or more and then taken down another 50 percent with the coupon code come to 17.50 for each box. Each box contains six rolls 20 feet each or 120 liner feet of bag. My math comes out to 12.9 cents a liner foot.