how to add a link in bacth file

[Windows 11]

hello, im trying to do a advanced calculator. And what i mean with that is, you can insert a link or two then press 2 to calculate the prices that will be showed in the link. So for an example "press 1 to insert a link, press 2 to calculate price." so if I take a link like www.blablabla1.com i want it to read the price of the product on the website, and add the price to my application and then do the same with a new link, and later on calculate both of the prices. (only in plus form)I have done a code, but i just need help with the end.(ONLY IN BATCH FILE)

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