decreases must be made around the central stitch on every 8. (8.) 7. (7.) 7. round a total of 13 (14) 15 (15) 16 times as follows: k1 (= central stitch), k2tog, work in the round until 2 sts before your next marker, SSK.
Does this mean that I do those two decreases on every 7 rounds which needs to be repeated 15 more times? (size M, the middle). So I knit 105 rounds all together? The stitch before decreases is 66 and after is 36 by decreasing 30 Sts.