How do I know when the proper amount of restitution has been paid?

Exodus 22:1, 4“If someone steals an ox or sheep and then kills or sells it, the thief must pay back five oxen for each ox stolen, and four sheep for each sheep stolen. . . . If someone steals an ox or a donkey or a sheep and it is found in the thief’s possession, then the thief must pay double the value of the stolen animal.”

Leviticus 6:4-5“If you have sinned in any of these ways, you are guilty. You must give back whatever you stole, or the money you took by extortion, or the security deposit, or the lost property you found, or anything obtained by swearing falsely. You must make restitution by paying the full price plus an additional 20 percent to the person you have harmed.”

Proverbs 6:31If he [a thief] is caught, he must pay back seven times what he stole, even if he has to sell everything in his house.

Luke 19:8-9Meanwhile, Zacchaeus stood before the Lord and said, “I will give half my wealth to the poor, Lord, and if I have cheated people on their taxes, I will give them back four times as much!” Jesus responded, “Salvation has come to this home today, for this man has shown himself to be a true son of Abraham.”

The amount of restitution should exceed the original amount lost or stolen.

Matthew 5:43-48“You have heard the law that says, ‘Love your neighbor’ and hate your enemy. But I say, love your enemies! Pray for those who persecute you! In that way, you will be acting as true children of your Father in heaven. For he gives his sunlight to both the evil and the good, and he sends rain on the just and the unjust alike. If you love only those who love you, what reward is there for that? Even corrupt tax collectors do that much. If you are kind only to your friends, how are you different from anyone else? Even pagans do that. But you are to be perfect, even as your Father in heaven is perfect.”

Jesus’ teaching went beyond the idea of payment in kind. The offended party should forgive and genuinely love the offender, regardless of the amount of restitution or even in absence of restitution.