Receipt contents:
menu: nm: MINERAL 600 ML
cnt: 1
price: 7,727
nm: BULGOGI RICE R
cnt: 1
price: 33,636
sub_total: subtotal_price: 41,364
tax_price: 4,136
total: total_price: 45,500
cashprice: 50,000
changeprice: -4,500