A lady buys goods worth rs.200 from a shop. (shopkeeper selling the goods with zero profit). The lady givs him 1000 rs note. The shopkeepr gets the change from the next shop and keeps 200 for himself and returns rs.800 to d lady. Later the shopkeepr of the next shop comes with the 1000rs note saying "duplicate" and takes his money back.
1000 rs loss
let's take example
a shop keeper is having 0 rs and a single energy drink bottle
he got 200 bucks for that energy drink. now just think that he is not having 200 rs insted of that he's having that energy drink it self. so till now he's not in loss.
and after that he return 1000 rs to another shop keeper so the loss is only monetary loss of rs 1000