Thank you.
But where do I change these values?
I cannot find them in electrum_data\config file
I am using the portable version of Electrum
I don't believe you can change those values by using the configuration file, you probably need to change the source code and recompile the file yourself.
What is it that you're trying to achieve though? as suggested above, you can always get the BTC value from your Electrum, and then head to preev.com to check.