How to decrease ribbed beanie

Hello, a couple of us have recently started knitting and are currently doing a beanie hat each. This is the second one we have done and would like to know what is the best way to decrease it. We have 84 stitches and doing ribbed k1, p1.

Thank you for your help

This person uses a multiple of 10 (as I do), but this method may work.

Thank you Jan-In-CA, we will give this a go.

In 1x1 ribbing, I’m partial to Techknitter’s flat top - http://techknitting.blogspot.com/2008/03/truly-flat-hat-top-and-part-4-of-pocket.html.

Thank you lewister, really appreciate you replying.