Hello Prakash, 

I have tested this behavior and the value of the WebPercentEditor is being rounded correctly while using server-side code, but it is not being rounded correctly for client-side code. You can easily overcome this by using the parseFloat method and then applying the toPresicion method to round up the numbers. If you would like to use percentages without decimal places I recommend you using toPresicion(2).

For example, if the value of the WebPercentEditor is 0.2967, the rounded value would be 0.30 and the value that the WebPercentEditor would show would be 30%.

I am attaching a small sample application that demonstrates the rounding of the value with server-side code and how the value could be rounded using the above stated methods. 

Please test the sample on your side let me know if you have any questions. 

Regards,
Ivan Kitanov

2844.PercentEditor.zip