How to consider this is entry and stock?

Ashok Alavandi (3 Points)

12 November 2021  

If "only" 1000stock of panipuri plate there and I sold all 1000 panipuri and in our neighbour shop as give me 20plate pani puri free. Then I sold 15plate pani puri and get money. Now I gave allready bill for that. 
1) In this situation how we write entry? 
2) If auditor asked me about this  what we told this?
3) before auditing what we do for this?