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Inventories, net
 12 Months Ended
Dec. 31, 2020
Text block [abstract]  
Inventories, net
8. Inventories, net
An analysis of inventories at December 31, 2019 and 2020 is as follows:
 
  
2019
 
 
2020
 
Mobile phones, accessories, computers, TVs, cards and other materials
  
 
Ps.43,954,616
 
 
 
Ps.33,763,086
 
Less: Reserve for obsolete and slow-moving inventories
  
 
(2,852,604
) 
 
 
(3,385,647
) 
 
  
 
 
 
 
 
 
 
Total
  
 
Ps.41,102,012
 
 
 
Ps.30,377,439
 
 
  
 
 
 
 
 
 
 

For the years ended December 31, 2018, 2019 and 2020, the cost of inventories recognized in cost of sales was Ps.180,013,986, Ps.174,543,602 and Ps.167,546,288, respectively.