1. unit:
1
2. pair:
0.5
3. percent [%]:
100
4. permille:
1000
5. parts per million [ppm]:
1000000
6. parts per billion [ppb]:
1e+9
7. half:
2
8. one third:
3
9. one fourth:
4
10. one fifth:
5
11. one sixth:
6
13. one eighth:
8
15. one tenth:
10
9. quarter:
4
23. dozen:
0.08333333
24. gross:
0.0069444444