Receipt contents:
menu: nm: BUBUR UNGU
discountprice: -7,800
price: 26,000
nm: SENDOK BEBEK
price: 0
nm: WAJIK
discountprice: -2,100
price: 7,000
nm: CENTIK MANIS
discountprice: -1,650
price: 5,500
nm: PLASTIK SEDANG
price: 0
sub_total: subtotal_price: 26,950
total: total_price: 26,950
cashprice: 26,950