Petunjuk : 1. Kode terdiri dari 7 digit Digit 1,2 merupakan kode "Penerbit" Digit 3,4 merupakan kode "Jenis Buku" Digit 5-8 merupakan kode "Tahun" 2. Harga asal = sesuai data tabel 3. Diskon diberikan untuk pembelian buku : Airlangga 10% Gunung Agung 15% Balai Pustaka 20% 4. Harga Baru = harga asal dikurangi diskon =IF(LEFT(B5,2)="AL","AIRLANGGA",IF(LEFT(B5,2)="AO","ANDI OFFSET",IF(LEFT(B5,2)="BA","BINARUPA AKSARA",IF(LEFT(B5,2)="BP","BALAI PUSTAKA",IF(LEFT(B5,2)="EL","ELEX MEDIA",IF(LEFT(B5,2)="GA","GUNUNG AGUNG",IF(LEFT(B5,2)="GM","GRIYA MEDIA",IF(LEFT(B5,2)="MI","MIZAN",IF(LEFT(B5,2)="SE","SALEMBA EMPAT"))))))))) =MID(B5,5,4) =IF(MID(B5,3,2)="01","POLITIK",IF(MID(B5,3,2)="02","EKONOMI",IF(MID(B5,3,2)=&