When a culture that uses a "comma" as a decimal separator is applied to the Kendo UI NumericTextBox, the value of the aria-valuenow attribute uses the value without transforming the "," separator into a "." separator.
Reproduction of the problem
Set a culture that utilizes the comma as a decimal separator. Notice the aria-valuenow attribute's value:
* **Kendo UI version:** 2020.2.617
* **jQuery version:** 1.12.4
* **Browser:** [all]