please bantuin yaaaaaaa

harga beli Rp800.000,00
harga jual Rp920.000,00
keuntungan=……
keuntungan= harga jual-harga beli
= 920.000-800.000
= 120.000
presentase = 120.000/800.000 × 100°/•
= 15°/•

920.000 - 800.000 = 120.000

[tex] \frac{120.000}{800.000} [/tex] x 100 = 15%

Jadi keuntungannya 15%