Receipt contents:
menu: nm: Hero
cnt: 2
price: 23,000
nm: Choco Bite
cnt: 3
price: 19,500
sub_total: subtotal_price: 42,500
etc: 0
total: total_price: 42,500
cashprice: 50,000
changeprice: 7,500
menutype_cnt: 2
menuqty_cnt: 5