To calculate the discount on the computer, we can use the original price and the percentage off.
- Calculate the discount amount: \[ \text{Discount} = \text{Original Price} \times \left(\frac{\text{Discount Percentage}}{100}\right) \] \[ \text{Discount} = 800 \times \left(\frac{20}{100}\right) \] \[ \text{Discount} = 800 \times 0.20 = 160 \]
So, the discount on the computer is $160.