Receipt contents:
menu: nm: S-Ovaltine Macchiat
unitprice: @22,000
cnt: 2X
price: 44,000
sub_nm: 25%
nm: S-KOI Cafe Macchiat
unitprice: @25,000
cnt: 1X
price: 25,000
sub_nm: 25%
sub_total: subtotal_price: 62,727
tax_price: 6,272
total: total_price: 69,000
cashprice: 100,000
changeprice: 31,000