Receipt contents:
menu: nm: S-Ovaltine Macchiat
unitprice: @22,000
cnt: 1X
price: 22,000
sub_nm: 25%
nm: S-Hazelnut Milk Tea
unitprice: @20,000
cnt: 1X
price: 20,000
sub_nm: 70% Less Ice
sub_total: subtotal_price: 42,000
tax_price: 0
total: total_price: 42,000
cashprice: 50,000
changeprice: 8,000