Is a woman's work in the statistics and estimation of sales of telecom cards, which are used for permissible and impermissible matters, considered halal, and does it not entail sin?

There is no objection to writing a report to the company's president regarding the sales of these cards, because their use is predominantly in permissible matters. Anything that is predominantly permissible is not forbidden to sell, unless the seller knows that the buyer intends to use it for impermissible purposes.