Answer
A kilogram of skinless chicken breast in Uruguay was listed at 655 pesos, which is approximately $17. So the short answer is nearly $17 per kilogram if you are buying breast rather than cheaper cuts of chicken.
For a grocery budget, this is an important detail: different cuts and purchase formats vary greatly in price. A whole chicken, thighs, or other cuts may offer better value than breast, although the overall value depends on the store, promotions, and how many prepared portions you get.
It is worth comparing not only the price on the label but also the cost of meals for the family. If chicken breast regularly appears in the shopping basket, it can significantly increase monthly expenses, so it is better to track it as a separate line item rather than fold it into the total grocery budget.