This is the latest screen shot I got after removing "tax rate: [9.750]" from the code and leave only the "from rs:[9.750]".
As you can see in the screen shot the tax is not still added.
I think probably the problem is coming from my database.
In tax column Type, I set it to VARCHAR and it should be "INT" integer, not sure. I tried to set it to "INT" but it changes the tax value.
For example if the tax rate is 9.75 or 10.25 (with VARCHAR) it changes to 9 and 10 when I set it to "INT". I don't know if that could be the problem.