(13.546-9878)•326+(100.000-84.364)•502=
326*13.546+326*(-9878)+502*100.000+502*(-84.364)=4.415.996+(-3.220.228)+50.200.000+(-42.350.728)=4.415.996-3.220.228+50.200.000-42.350.728=9.045.040
9млн. 045тыс. 040, ответ