how to narrow down a search by two field's data

[IT_Charlies]

I am quite new to Access and programming,

I have a table with 1,101,203 records, 16 fields. How do I create a form to search by, 'Account number', and narrow down searches for
+/- 10% on price and sq ft.

example:I would search the account number and it would give me;
Account_no: 10140455
Color: White


Etc: Etc
Etc: Etc
Value: 149720
Sq_Ft: 13875

I want to get a list of records displaying +/- 10% of the 'Value' and 'Sq_Ft' I got from the search I made of the 'Account_no'.
So when I search 'Account_no': 10140455 and it gives me that account information(etc, etc, etc, Value and Sq ft), I also want to get a list of records that have +/- 10% of the value and sq ft of the 10140455 record.

I hope someone understands what I'm asking for and can help me.
Thank You in advance for the tips and/or help I receive.

[orange]

?? You want to find accounts that have value +/- 10% Value of account 10140455 and +/-10% of sq-ft of account 10140455?? It's only this account?
I would determine .9*14970( 13473) and 1.1 *14970(16467) and use those numeric values
and .9* 13875(12487.5) and 1.1* 13875(15262.5)

Hopefully value and sq_ft are indexed.

Select account from table
where
value between 13473 and 16467 AND
sq_ft between 12487 and 15263

[IT_Charlies]

It is not only that one account. let me put like this, My client walks in and tells me his account number for his property, i put in his number in my search box. When the results come back i want to get all the records that are +/- 10% and his record in between the +/- 10% records.
Account no Etc etc etc etc Value Sq ft
etc etc etc etc etc etc etcetc etc etc etc etc etc etc
10140455 etc etc etc etc 149720 13875
etc etc etc etc etc etc etc
etc etc etc etc etc etc etc
etc etc etc etc etc etc etc

Hope this is a better explanation.

[orange]

I'm trying to emphasize that dealing with 1.1+ million records could be slow.
Things will improve a lot if Value and sq_Ft fields are indexed. I calculated the .9 and 1.1 % values for Value and SQ_ft since I wanted to avoid doing these 4 calculations in each of the records involved.

You could have a form where an account number is entered:

Account Number _________ and type in the account number,

behind the scenes vba gets the Value and SQ_FT values for the account. It then calculates the .9 and 1.1 values
for Value (say X and Y) and SQ_ft (say A and B), and creates some SQL to build the query.

The idea is to do the calculations of .9 and 1.1 once and then put in the actual values.
Also, since you want his account figures included, I think I would add an OR to the query
and if you want his numbers to be within the data being displayed I'd suggest a SORT BY.

The basic query is along this line, but I'd still do it behind the scenes (vba code) to avoid the extra (potential) 4 million calculations.
---untested---

SELECT theFieldsYouWant FROM Table
WHERE
(Value BETWEEN X and Y  AND
Sq_ft BETWEEN A  and B)  OR
(acctNo = AcctNo That was typed in)
ORDER BY Value ;