How can 2 x 23 become 47?

I bought two cakes of my favourite brand of toilet soap and the cashier
took Rs.47 from me.

After reaching home, I just wondered how a cake of toilet soap could
cost Rs. 23.50.

I inspected one cake and saw the MRP as 23. I was only becoming more
curious.

I took the other cake and found the MRP as 24. One was made in June
and the other in September!!

That is inflation for you....and me too!