EDIT

Thanks for Jhelanee for noticing this mistake;

“Steps 1 and 2 in the decrease rounds do not contain enough stitches. They should read:

Next round; K2tog, K4, K2tog, P3, C6, P3
Next round; K2tog, K2, K2tog, P2tog, P1, K6, P2tog, P1”

Thank you!