The composition of inventories is as follows:
| 2017 | 2016 | ||||||||||
| Cost | Provision for losses |
Net balance | Cost | Provision for losses |
Net balance | ||||||
| Fuels, lubricants and greases | 1,622,054 | (3,074) | 1,618,980 | 1,317,042 | (2,851) | 1,314,191 | |||||
| Finished goods | 485,407 | (18,495) | 466,912 | 425,335 | (19,801) | 405,534 | |||||
| Work in process | 1,637 | - | 1,637 | 2,011 | - | 2,011 | |||||
| Raw materials | 492,029 | (1,835) | 490,194 | 246,974 | (1,147) | 245,827 | |||||
| Liquefied petroleum gas (LPG) | 102,031 | (5,761) | 96,270 | 71,466 | (5,761) | 65,705 | |||||
| Consumable materials and other items for resale | 160,024 | (5,380) | 154,644 | 138,610 | (7,619) | 130,991 | |||||
| Pharmaceutical, hygiene, and beauty products | 415,956 | (2,447) | 413,509 | 352,187 | (9,985) | 342,202 | |||||
| Purchase for future delivery (1) | 222,808 | - | 222,808 | 228,871 | - | 228,871 | |||||
| Properties for resale | 27,032 | (107) | 26,925 | 25,982 | (107) | 25,875 | |||||
| 3,528,978 | (37,099) | 3,491,879 | 2,808,478 | (47,271) | 2,761,207 | ||||||
(1) Refers to ethanol, biodiesel and advance of fuels.
Movements in the provision for losses are as follows:
| Balance on 12/31/2014 | 46,325 | |||||
| Additions to net realizable value adjustment | 2,003 | |||||
| Reversals of obsolescence and other losses | (14,336) | |||||
| Balance on 12/31/2015 | 33,992 | |||||
| Additions to net realizable value adjustment | 12,393 | |||||
| Additions of obsolescence and other losses | 886 | |||||
| Balance on 12/31/2016 | 47,271 | |||||
| Reversals to net realizable value adjustment | (6,713) | |||||
| Reversals of obsolescence and other losses | (3,459) | |||||
| Balance on 12/31/2017 | 37,099 | |||||
The breakdown of provisions for losses related to inventories is shown in the table below:
| 2017 | 2016 | ||
| Net realizable value adjustment | 19,817 | 26,530 | |
| Obsolescence and other losses | 17,282 | 20,741 | |
| Total | 37,099 | 47,271 |