Shown with a cast-on count of 9 stitches.  

• Round 1: Sl1 wyib, k2, yo, k2tog, k1, [yo] twice, k2tog, k1 (10 sts).
• Round 2: K3, p1, k3, yo, k2tog, k1.
• Round 3: Sl1 wyib, k2, yo, k2tog, k5.
• Round 4: K7, yo, k2tog, k1.
• Round 5: Sl1 wyib, k2, yo, k2tog, k1, [yo, yo, k2tog] twice (12 sts).
• Round 6: [K2, p1] twice, k3, yo, k2tog, k1.
• Round 7: Sl1 wyib, k2, yo, k2tog, k7.
• Round 8: BO 3 sts, k5, yo, k2tog, k1 (9 sts).