I’m knitting this top, but I wanted a different shape in the body, so rather than doing the a-line shape, I knit straight down from the armholes to the waist, where I would like to have a decrease round to bring it down to my waist size, and then finish it off with a wide rib panel on smaller needles. However, this is my first time modding a pattern and I’m not completely sure how to go about the math.
The work is currently at 232 sts and it measures 107cm around, I would like to bring this down to around 81cm. The pattern specifies a (k3,p1) rib for the bottom, but I guess I could also do a (k2,p1) rib instead if the math works out better. How do I go about figuring out how many increases I need, and how to space them evenly?