persen keuntungan ibu susi ???


A) 3 gross = 360.000\xd7 3 = Rp 1.080.000,00, b)7 lusin = 36.000\xd7 7 = Rp 252.000,00, c) 9 buah = 3.250\xd7 9 = Rp 29.250,00, Jumlah hasil penjualan = 1.080.000 + 252.000 + 29.250 = Rp 1.361.250,00, Jumlah barang yang dijual = 3 gross + 7 lusin + 9 buah = 432 + 84 + 9 = 525 buah, Modal = 525\xd7 2.000 = Rp 1.050.000,00, Keuntungan = 1.361.250 – 1.050.000 = Rp 311.250,00, Persentase untung = 311.250/1.050.000 = 29,64%21d2 ,