L/F Ratio
Your L/F Ratio is how many of your Facebook friends are actually interested in you. It’s likes divided by friends times 100. If you're below 10, you're probably just a background character in someone's life.
3 likes, 30 friends = 10%, you’re barely a character.
1 like, 10 friends = 10%, you’re a stretch.
5 likes, 50 friends = 10%, you’re almost decent.