Jawabanmu

2014-04-14T08:11:17+07:00
Harga beli = 64.800
harga jual = 3 x 12 x 2.250 = 81.000
keuntungan = 81.000 - 64.800 = 16.200
presentasi keuntungan = 16.200/64800 x 100% = 25%
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