Neckband adjustment

I am knitting a sweater from a magazine pattern. I altered the neckline so that it will be a bit bigger than the original pattern. How do I recalculate the number of stitches to pick up to knit a 1" ribbed neckband?

Usually it’s the same stitch count I think, but it depends on the pattern. See what they did in the pattern for the other neck.

What is the name of the pattern and magazine?