Q: How to do a multi-pack listing with sku fetch?
A: You would have to load the URL into sku fetch and once the item loads, click Override Price. Type in the values for your formula, as if it is just 1 item. Then set Manual Override to Yes near the bottom of your formula wizard. Then go down to the box that shows the long, written out formula...and put a left parentheses ( at the beginning of that formula and a right parentheses ) at the end. Then put *2 Your selling price should then be doubled.
So for example, if your formula normally looked like this (long formula)
You'd set manual override to Yes and then change it to look like this ( (long formula) )*2