Receipt contents:
menu: nm: KUPAT TAHU
num: 0512100
unitprice: 19,000
cnt: 2
price: 38,000
nm: MIE KOCOK
num: 0515103
unitprice: 29,000
cnt: 3
price: 87,000
sub_total: subtotal_price: 125,000
tax_price: 12,500
total: total_price: 137,500
cashprice: 150,000
changeprice: 12,500