Jawabanmu

2014-04-15T10:46:47+07:00
Pendapatan =  637500  X 100 %
                      750000
                  = 85 %

Kerugian = 100 % - 85 %
             = 15 %

Smoga membantu ... :D
3 5 3
2014-04-15T11:29:23+07:00
Presentase rugi =100 - 637500/750000 x 100 => 100 - 85 = 15%