Jawabanmu

2014-02-26T08:42:46+07:00
Diskonnya 12.000

 x 100%
= 0,15 x 100%
= 15%
2014-02-26T08:43:27+07:00
80.000-68.000 = 12.000
12.000/80.000 x 100% = 3/20 x 100% = 15%