If I order directly from Amazon as a prime member of 22:50 (ie not pay shipping), I pay per box approximately 1.87 (12 x 1.87 = 22:40). That is the 672 towels per piece cost about 00:03 (12 cubes boxes x 56 sheets = 672 wipes / 0:03 = 20:16).
These are the towels really not worth it.