Hi,
I hope someone can explain this to my mathematically challenged self. I couldn't find a definitive answer anywhere.
I have started my first sweater, but am doing it at a different gauge than the pattern calls for which has resulted in headaches, sleeplessness, and swearing about having to deal with algebra again.

My husband can do stuff like this in his head, so he helped me and I feel pretty confident about the calculations.
So, I think I have all my calculations correct, except for one. If my gauge is smaller, shouldn't I need more yarn? The yarn store lady where I shop didn't think so, that an inch of knitting is an inch of knitting, whether your stitches are larger or smaller (only here they say centimeters). But this doesn't sit right with me. I feel like I need more yarn at a smaller gauge.
Is this why I flunked Algebra I twice, all those years ago?