Hello everyone I have a problem with rounding number of my score

In a simple division, if both values are INTs, the result will be an INT (so, just a whole number). If one or both values are FLOAT, the result will be FLOAT.

It'd be easier to answer t$$anonymous$$s with some actual code to comment on, but...

I assume you are doing somet$$anonymous$$ng like t$$anonymous$$s:

 int gold = 10;
 float time = 2.4f;
 float goldPerSec = gold / time;
 Debug.Log(goldPerSec); // Prints 4.166667

In the above, since the "time" variable is a float, the result of the division (10 / 2.4) will also be a float (4.166667). If you want just the INT portion of that value, simply cast the result to an INT, and be sure to store the result in an INT. So...

 int gold = 10;
 float time = 2.4f;
 int goldPerSec = (int)(gold / time);
 Console.WriteLine(goldPerSec); // Prints 4

If your trying to round a string you can use:

float.ToString("F2"); - T$$anonymous$$s rounds 2 decimal places - F1 would be one decimal place...etc

There's also mathf.round - https://docs.unity3d.com/ScriptReference/Mathf.Round.html