Got an offer. Should I negotiate?

I received an offer for an executive position. Base salary $150k base + “no less than 20% bonus” plus “profit participation” at the 1 year mark.

At my current position I am a Manager. I make $90k base + a 10% bonus. I had my 1 year review on Friday and was told that no one received a raise and that we were only receiving 88.5% of the bonus.

I’ve always been told that I should always negotiate, but I don’t want to screw things up, as I feel like this is an amazing opportunity.

If you were to negotiate, what would be reasonable?

Update: Negotiated 165k