Hello Aspirant,
Since you have not mentioned the name of examination but if we go through your profile then it shows that yo are an engineering aspirant so you might be as king for JEE-Main, if not then please mention the correct one.
See you cannot get decimal value as your total marks, whenever it will be, it will be without decimal value so I would request you to recheck it.
it is quite difficult to tell you an exact figure of your percentile and rank because it keeps on changing every year depending upon various factors but yes we can help you with approximate figures on the basis of analysis of previous year's data.
So If we go through the analysis of marks Vs Percentile Vs rank for JEE-Main 2020 then according to the marks mentioned by you in the question (120) your percentile and rank are expected to be in the range of 95.18 - 96.96 and 26321 - 21321.
You can check out marks Vs ranks Vs Percentile from the link given below :-
https://engineering.careers360.com/articles/jee-main-marks-vs-percentile
Or
You can also use JEE-Main Rank Predictor to predict your rank :-
JEE Main Rank Predictor - Know your expected IIT JEE Main 2021 Rank by ...
Note that the percentile and rank which are predicted is only the expected percentile and rank on the basis of previous year's data so your actual percentile and rank might vary depending upon current factors.
To have a list of all those colleges which you can get based upon your marks, category, and state you can use JEE-Main College Predictor:-
https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer
If you are preparing for JEE-Main 2021 (remaining attempt) or 2022 then I would recommend you to check the resources made by our experts to help aspirants like you in the best and smart preparation of JEE-Main 2021 or 2022 :-
https://learn.careers360.com/jee-main-coaching/?utm_source=%20QnA
I hope this information helps you.
Good Luck!!
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