Receipt contents:
menu: nm: ZUPPA SOUP
num: 05130000
unitprice: 28600
cnt: 3.000x
price: 85,800
nm: MINERAL WATER
num: 13100000
unitprice: 6600
cnt: 3.000x
price: 19,800
total: total_price: 105,600
cashprice: 150,000
changeprice: 44,400