With the use of specialized word count tools giving the possibility to count words and numbers separately, the charge for the numbers in the source text is being discussed.
Although it may seem obvious that translators “do nothing with the numbers”, there are still situations when numbers add some very thorough work for translators:
1. When numbers are to be translated (for example, change 123 to one hundred twenty-three)
2. When numbers are to be checked or proofread, especially concerning a large number of massive
So if you are thinking about whether to include the numbers in your paid word count, just estimate your effort spent on the first. You should decide if you want to charge your clients for numbers.