하나 계산기 (상황별 계산)

It is a calculator that fits the situation in everyday life.
The situation will continue to be added.

[Current function]
1. At the mart
   -Discounted (%) amount and final price
   -Calculate how much per 100g

2. Stock trading
   -Calculate the average unit price change of stocks when trading stocks
     ex) If you buy 100 shares of 20,000 won stock and buy 20 shares for 1.5 million won, what is my average unit price?