How do you determine your exits?

Hi all, newish to value investing. How do you determine your exit on an investment?

• Preset target you’re looking to hit? (probably subject to major variables changing) ie based off share price or share price derived from another metric like enterprise value etc?

• By feel?

• Something else?

I bought 2,000 shares of $RRGB Red Robin because the market cap had hit $50M when they have $1.2B in sales. Obviously it’s a low margin industry but they were trading at their EBITDA more or less. They had just paid off $20M in debt and I knew interest rates were coming which could help their balance sheets.

My entry point was $3.48/share and it’s currently at $4.64, a 33% gain in 20 days. My belief is this is a $10-15 stock minimum. But I’m getting that itchy trigger finger so wondering how other people like to time exits.