Your question is still not specific as in your last query. Can you please be more specific what kind of formula do you need to enter.

Secondly, by your posts, I feel you are having a language problem. I suggest you to find someone from your country from the member list present in LEAP website itself https://leap.sei.org/default.asp?action=members&country=Indonesia&recent=365

I hope you will find a good guide.

Best,

Utsav