Refer to the spreadsheet below.

$\backslash$table$[[1^{-1},$A$,$B $,$ C$,$D$,$E$,$F$,$G$,$H$,1,$K$,$L$,$M$],[2,,,$Coal Bank Hollow Recycling,,$],[3,$a$,,,],[4,,,,],[5,$Flow From Node,Yield,Flow Into Node,Cost,,Node,Net Flow,Supply$/$Demand$],[6,0\mathrm{.}0,1$ Newspaper,$0\mathrm{.}90,0\mathrm{.}0,5,$Process $1,$$$13,,1$ Newspaper,$0\mathrm{.}0,\mathrm{.}70],[7,0\mathrm{.}0,1$ Newspaper,$0\mathrm{.}85,0\mathrm{.}0,6,$Process $2,$$$12,,2$ Mixed Paper,$0\mathrm{.}0,-50],[8,0\mathrm{.}0,2$ Mixed Paper,$0\mathrm{.}80,0\mathrm{.}0,5,$Process $1,$$$11,,3$ White Office,$0\mathrm{.}0,-30],[9,0\mathrm{.}0,2$ Mixed Paper,$0\mathrm{.}85,0\mathrm{.}0,6,$Process $2,$$$13,,4$ Cardboard,$0\mathrm{.}0,-40],[10,0\mathrm{.}0,3$ White Office,$0\mathrm{.}95,0\mathrm{.}0,5,$Process $1,$$$9,,5$ Process $1,0\mathrm{.}0,0],[11,0\mathrm{.}0,3$ White Office,$0\mathrm{.}90,0\mathrm{.}0,6,$Process $2,$$$10,,6$ Process $2,0\mathrm{.}0,0],[12,0\mathrm{.}0,4$ Cardboard,$0\mathrm{.}75,0\mathrm{.}0,5,$Process $1,$$$13,,7$ Newprint,$0\mathrm{.}0,60],[13,0\mathrm{.}0,4$ Cardboard,$0\mathrm{.}85,0\mathrm{.}0,6,$Process $2,$$$14,,8$ Packaging,$0\mathrm{.}0,40],[14,0\mathrm{.}0,5$ Process $1,0\mathrm{.}95,0\mathrm{.}0,7,$Newprint,$$5,,9$ Print Stock,$0\mathrm{.}0,50],[15,0\mathrm{.}0,5$ Process $1,0\mathrm{.}90,0\mathrm{.}0,8,$Packaging,$$6,,,,],[16,0\mathrm{.}0,5$ Process $1,0\mathrm{.}90,0\mathrm{.}0,9,$Print Stock,$$8,,$Q$.,3,],[17,0\mathrm{.}0,6$ Process $2,0\mathrm{.}90,0\mathrm{.}0,7,$Newprint,$$6,,,=,$:$.$