How to Code a Chrome Extension to Remove VAT From Product Prices

I was just trying to get Bing to create a simple little extension where I could plug in the inclusive VAT price, and it gives me the exclusive VAT price. But when you press the calculate button, it failed. And so I have to go back through cutting and pasting all of the things out of which will coach Studio to make it fixed for version three. Even then, the extension then worked, but didn't do much results. It was there. All the bits were there. Look at the logs. So just something as simple as that. Beautiful. Should be fairly easy for it to do.And yeah, it sort of fell down pretty badly. You see all these examples online