10.65*3000*0.3%=95.85元;
銷售費用:
13.86 * 3000 * 0.3% = 124.74元;
差價利潤:
(13.86-10.65)* 3000 = 9630元;
賺取的利潤:
9630-95.85-124.74 = 9409.338+0元。