The cost of the actual chlorine per oz is:
Cost/Oz CL = Price / (Jug oz * Concentration)
so for each of those
$1.99 / (128 *0.06) = $0.26/oz
$2.49 / (128 *0.0825) = $0.24/oz <-- Best Deal
$3.75 / (128 *0.10) = $0.29/oz
This will work for non-standard jug sizes too.
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