The high value of coins in New Testament times

Matthew 18
21 Then Peter said to Jesus, “Lord, how many times should I forgive my brother or sister who sins against me? Should I forgive as many as seven times?”
22 Jesus said, “Not just seven times, but rather as many as seventy-seven times [Or seventy times seven]. 23 Therefore, the kingdom of heaven is like a king who wanted to settle accounts with his servants. 24 When he began to settle accounts, they brought to him a servant who owed him ten thousand bags of gold [Or ten thousand talanta, an amount equal to the wages for sixty million days]. 25 Because the servant didn’t have enough to pay it back, the master ordered that he should be sold, along with his wife and children and everything he had, and that the proceeds should be used as payment. 26 But the servant fell down, kneeled before him, and said, ‘Please, be patient with me, and I’ll pay you back.’ 27 The master had compassion on that servant, released him, and forgave the loan.
28 “When that servant went out, he found one of his fellow servants who owed him one hundred coins [Or one hundred denaria, an amount equal to the wages for one hundred days]. He grabbed him around the throat and said, ‘Pay me back what you owe me.’
29 “Then his fellow servant fell down and begged him, ‘Be patient with me, and I’ll pay you back.’ 30 But he refused. Instead, he threw him into prison until he paid back his debt.
31 “When his fellow servants saw what happened, they were deeply offended. They came and told their master all that happened. 32 His master called the first servant and said, ‘You wicked servant! I forgave you all that debt because you appealed to me. 33 Shouldn’t you also have mercy on your fellow servant, just as I had mercy on you?’ 34 His master was furious and handed him over to the guard responsible for punishing prisoners, until he had paid the whole debt.
35 “My heavenly Father will also do the same to you if you don’t forgive your brother or sister from your heart.”

Luke 19
11 As they listened to this, Jesus told them another parable because he was near Jerusalem and they thought God’s kingdom would appear right away. 12 He said, “A certain man who was born into royalty went to a distant land to receive his kingdom and then return. 13 He called together ten servants and gave each of them money worth four months’ wages [Or he divided ten minas among them. “A mina was worth 100 denarii, and 1 denarius or drachma was the normal daily wage for an unskilled laborer.” *] He said, ‘Do business with this until I return.’ 14 His citizens hated him, so they sent a representative after him who said, ‘We don’t want this man to be our king.’ 15 After receiving his kingdom, he returned and called the servants to whom he had given the money to find out how much they had earned. 16 The first servant came forward and said, ‘Your money has earned a return of one thousand percent.’ 17 The king replied, ‘Excellent! You are a good servant. Because you have been faithful in a small matter, you will have authority over ten cities.’
18 “The second servant came and said, ‘Master, your money has made a return of five hundred percent.’ 19 To this one, the king said, ‘You will have authority over five cities.’
20 “Another servant came and said, ‘Master, here is your money. I wrapped it up in a scarf for safekeeping. 21 I was afraid of you because you are a stern man. You withdraw what you haven’t deposited and you harvest what you haven’t planted.’ 22 The king replied, ‘I will judge you by the words of your own mouth, you worthless servant! You knew, did you, that I’m a stern man, withdrawing what I didn’t deposit, and harvesting what I didn’t plant? 23 Why then didn’t you put my money in the bank? Then when I arrived, at least I could have gotten it back with interest.’
24 “He said to his attendants, ‘Take his money and give it to the one who has ten times as much.’ 25 ‘But Master,’ they said, ‘he already has ten times as much!’ 26 He replied, ‘I say to you that everyone who has will be given more, but from those who have nothing, even what they have will be taken away. 27 As for my enemies who don’t want me as their king, bring them here and slaughter them before me.’”
28 After Jesus said this, he continued on ahead, going up to Jerusalem.