So, the pattern requirements are 220 yards of worsted yarn. The skein supposedly has 260 yards of worsted yarn. But it's not enough. On the 2nd row of decreases, I have 7 grams of yarn left, and no hope of finishing this hat.
When staging this picture, I also tossed in the little ball of fingering Bugga that was left over from making the herbivore. There's 4 grams of that. If I held it double, it might pass for worsted, but while it's the same colour, it's far more luminous than the worsted yarn.