Receipt contents:
menu: nm: WALL'S BABY SHARK 60
unitprice: 3000
cnt: 1
price: 3,000
nm: MAGNUM WHT ALMND 80
unitprice: 15000
cnt: 1
price: 15,000
nm: WALL'S FEAST VNILA65
unitprice: 5400
cnt: 1
price: 5,400
sub_total: subtotal_price: 23,400
tax_price: 2,127
total: total_price: 23,400
cashprice: 50,000
changeprice: 26,600