ek rupai ka danda

was buying vegetables the other day.
came to Rs 11 (not buying much).
had 2 tenners and no circular/cylindrical castings called coins.

csm - dus mein de do na!
shopkeeper - ek hi rupai ka danda hai.

while the mathematics will say that there is a 10% difference between 11 and 10, it is after all Re 1.
it does not get much nuts.

but obviously it is significant in a high volume low value business.

so go easy on the rounding off with the small traders.