I have been looking for an answer to this for a few hours and can't find much. Are there any websites, hard figures or rules of thumb on what percentage of Amazon buyers write reviews?
For example, there is an external hard drive that have 27 reviews. I look at the reviews and they are extensive and long (and don't look like fake reviews). From that number of 27 can I estimate how many sales that external hard drive has had?
And are hard book buyers different when they write reviews compared to physical products? Are they more likely to write reviews compared to a person who bought an external hard drive?
Thanks in advance,