Net Profit 8 Percent

you may choose ITR-4,

Audit is applicable only if Firm turnover exceeds Rs. 1 Crore so if you wish to file ITR 5 no problem you can....
if u wish to.file ITR 4 then you must offer at least 8% of turnover (6% in certain cases) as business profit.. if opt for Presumptive then next 4 years you must offer your profit under Presumptive other wise liable for tax audit u/s 44AB and maintenance of books of accounts u/s 44AA..

if choose ITR 5 then NP is below 8% without Audit

yes if you choose ITR 5 up to 1 Crore turnover no tax audit u/s 44AB