Soal-Soal Matematika/Perdagangan ekonomi

berat barang

$Neto=Bruto-(Bruto\cdot {\frac {T}{100}})$ atau $Neto=Bruto\cdot {\frac {100-T}{100}}$

potongan harga barang

1. Diskon tunggal

$HP=HA-(HA\cdot {\frac {D}{100}})$ atau $HP=HA\cdot {\frac {100-D}{100}}$

1. Diskon ganda

$D=D_{1}+D_{2}-{\frac {D_{1}\cdot D_{2}}{100}}$

$HP=HA-(HA\cdot {\frac {D}{100}})$ atau $HP=HA\cdot {\frac {100-D}{100}}$

untung dan rugi barang

$HJ=HB+(HJ\cdot {\frac {U}{100}})$ atau $HJ=HB\cdot {\frac {100+U}{100}}$

$HJ=HB-(HJ\cdot {\frac {R}{100}})$ atau $HJ=HB\cdot {\frac {100-R}{100}}$

$HB=HJ\cdot {\frac {100}{100+U}}$

$HB=HJ\cdot {\frac {100}{100-R}}$