tolong dibantu,please

[tex]persentase \: rugi \: = \frac{rugi}{harga \: beli} \times 100\% \\ 10\% = \frac{82.000}{x} \times 100\% \\ 10\%x = 82.000 \times 100\% \\ \frac{10}{100}x = 82.000 \times 1 \\ x = 82.000 \times \frac{100}{10} \\ x = 820.000[/tex]
Harga penjualan = Harga beli - rugi
Harga penjualan = 820.000 - 82.000
Harga penjualan = 738.000