Answer: The discounted price is $948. The value of the discount itself is $632.
Explanation:
To calculate discounts, you multiply the percentage of the discount as a decimal with the price of the product.
In this particular case:
0.40 [percentage of discount] x $1580 [original cost] = $632 (the amount of the discount)
$1580 - $632 = $698 [new price after discount is applied]