Convert from mercantile pound to bale [UK]

Unit Definition (mercantile pound)
The mercantile pound is a historic English unit of weight, the mercantile pound (libra mercatoria) was the commercial predecessor of the avoirdupois pound. Used from about 1100 to 1300, the mercantile pound contained 15 troy ounces or 7200 grains. This is equivalent to about 1.0286 avoirdupois pounds or 466.55 grams.

Unit Definition (bale [UK])
The bale [UK] is a commercial unit of weight for shipments of cotton. The British used the Egyptian bale, formerly equal to 750 pounds (340.19 kg) but now equal to 720 pounds (326.59 kg). Other countries use a variety of cotton bale weights.