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Inventories | 12 Months Ended
--- | ---
Dec. 31, 2020
Classes of current inventories [abstract] |
Inventories | Note 8. Inventories
| 2020 | 2019
Finished products | Ps. 3,694 | Ps. 3,996
Raw materials | 3,224 | 3,657
Non strategic spare parts | 934 | 1,006
Inventories in transit | 1,284 | 1,340
Packing materials | 271 | 240
Other | 320 | 299
| Ps. 9,727 | Ps. 10,538
For the years ended as of December 31, 2020, 2019 and 2018, the Company recognized write-downs of its inventories for Ps. 82, Ps. 244 and Ps. 122, respectively to net realizable value. For the years ended as of December 31, 2020, 2019 and 2018, changes in inventories are comprised of the following and included in the consolidated income statement under the cost of goods sold caption:
| 2020 | 2019 | 2018
Changes in inventories of finished goods and work in progress | Ps. 23,901 | Ps. 24,676 | Ps. 21,457
Raw materials and consumables used | 76,002 | 79,520 | 75,078
Total | Ps. 99,903 | Ps. 104,196 | Ps. 96,535

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