Armhole decreases - help please!

Hi all,

I am currently working on a rowan pattern and am having some trouble deciphering the instructions for the armhole decreases.
I have followed these two rows easily:
Next row (RS): K2, K2tog, K to last 4 sts, sl 1, k1, psso, K2
Next row: P2, P2tog tbl, P to last 4 sts, P2tog, P2

I am now on 97 stitches, but the next set of instructions are confusing me:
Working all armhole decreases as set by last 2 rows, dec 1 st at each end of next 1 rows, then on foll 5 alt rows, then on foll 4th row. 83 sts.

Having attempted to solve this myself, I assumed I would decrease on the next row (rs), do a non-decrease row (ws) then decrease on the next 5 rs rows, before three non-decrease rows and then a decrease on the fourth…
I am not sure if this is correct though so any help would be greatly appreciated!

Welcome!
Yes, that’s exactly right. Enjoy knitting your sweater.

Many thanks!