Sometimes these things take a while to sink in. I think I know what they want now.
As you're binding off the first 43 stitches, you also decrease 8 stitches as you're doing this.
Then, on the next 76 stitches, you decrease 15 stitches evenly across.
Then you decrease 8 stitches as you bind off the last 43 stitches.
Then Purl 1 row ( I think that's the one you thought was missing)
You're decreasing as you bind off to tighten up the top edge.
Does this make sense?
I would knit two together to do the decreases and then incorporate these in the bind off.
"Trust the pattern!"
Time flies like an arrow, but fruit flies like a banana.
Hop aboard while we follow the cloud-covered van of knitting harmony, man!! Woooo!! --Hedgehog
IngridKH on Ravelry