Convert centigram to decagram

The hectogram and the decagram are hardly ever used in English, but they are everyday shop units elsewhere. In Italy the 'etto' (hg, 100 g) is how ham and cheese are ordered at the counter: 'due etti di prosciutto' is 200 g. Sweden and Norway sell sweets and cold cuts by the 'hekto'. In Austria, Poland, the Czech Republic and Hungary the 'deka' (dag, 10 g) does the same job, so '10 deka' is 100 g; Czechs and Hungarians still write it dkg.