Jawabanmu

2014-02-18T20:16:58+07:00
5 jt - 4 jt = 1 jt 
1jt /5jt x 100 = 20 % 
ruginya 20 %
2014-02-18T20:17:09+07:00
1000.000
rumus kerugian : Harga beli - harga jual
5jt-4jt=1jt