Decreasing removes stitches from the working row, narrowing the width of the textile to contour the garment. Knitters achieve this by working two or more stitches together as a single unit. Different decrease methods lean either to the left or the right, allowing designers to create mirrored shaping on opposite edges of a garment like a V-neck sweater.
Heard on the job
You need to decrease evenly across the next row so the ribbed cuff pulls in tight.