How much is delivery charge for furniture bought at store vs ordered online?

It's depends on what you buy, from 10 $ up to 100 $ or more, .

$10 for small items and $99 for larger items but they charge the same for multiple items if you get 10 large items, it'll be $99 for all.

different prices based on size and location

Depends on where you live for items bought in store. There are various tiers of prices based on zipcode for each separate IKEA, which you can find online.

I do not know you can call tgey vsn transfer to someone eho may know