In the voice over industry, usually that's decided by the word count of the script, as well as understanding the number of finished audio files needed. (elearningindustry.com)
To better understand these numbers, realize that they are the maximum dollar amounts covered for a single person in an accident and the maximum allowed to be paid out for the entire accident. (4autoinsurancequote.com)
Understanding numbers in their grouping structure and their sequential structure. (tes.com)