Mistake Rib Decrease

So I have a 123 stitch mistake rib that I have been working for a hat is the pattern of k2, p2 k last 3 on straight needles. I’m knitting this for a hat and am ready to start decreasing. The problem is that I have no clue hoe to decrease while maintaining some semblence of the pattern. Anyone know how.

How many stitches do you need to decrease? After your decreases are completed, does the pattern still have "knit last 3 stitches? If not, you may be able to decrease there and still maintain your rib pattern.
Heidi

If anyone looking for an answer to the same question
stumbles in here as I just did, I found the answer here … https://mainer.wordpress.com/mistake-rib-beanie-barely-a-pattern/