I accidently corrupted my customer's hard drive. The customer claimed that she doesn't have any backup data and the data was very valuable for her plan to establish a new school. It was a Toshiba laptop ant the hard drive should have had a lot of teaching materials, application docs and more.
My and another data recovery firm's attempt to recover the files were not successful. I generally admit that was my fault (my employee) and I found that this case is legally classified as "ordinary negligence".
My customer asks for compensation. Does anybody have good background how much $$$ is appropriate?