He wrote wrong silver price per ounce

My son was fired for a job last week as he confused some information about silver price per ounce. He was responsible for an official website of one of the biggest online jewelry shops in our country and he was very proud of his job. He was always a good specialist and he could let himself to look for any kind of job as long as it was connected with the internet or the programming in the net. He was a very talented student and all his teachers always said that one day he will get a well paid job. They were right as he was earning big money from his job in this online jewelry shop. He was responsible for the website and all things connected with it like writing news and actualizing information on the website. Last week something went wrong as he forgot one number while writing official selling silver price per ounce on the website and by that he caused a big troubles. Many people were willing to buy such cheap silver and when the shop owner saw that he was mad as hell. Due to this information on the official website he was supposed to sell silver as cheap as if it was iron or something like that. The information was quickly corrected but it was the last thing my son did in this company. He was fired but luckily he was not forced to pay for losses he caused. Now he is looking for some other job but he will be remember the silver price per ounce for the rest of his life.