$799.99 with 40% off rounded to the nearest dollar

799.99(1-0.40) = 479.99

or, $480

To calculate the final price after a discount, you need to multiply the original price by the discount rate and then subtract that amount from the original price. In this case, the original price is $799.99 and the discount rate is 40%.

1. Convert the discount rate to a decimal by dividing it by 100: 40 / 100 = 0.4
2. Multiply the original price by the discount rate: $799.99 * 0.4 = $319.996
3. Subtract the discount amount from the original price: $799.99 - $319.996 = $479.994

Now, to round the final price to the nearest dollar, you can apply the standard rules for rounding decimals:

4. If the number to the right of the decimal point is less than 0.5, round down. If it is 0.5 or greater, round up.
5. In this case, the decimal part of the final price is 0.994, which is less than 0.5.
6. Round the amount down: $479

Therefore, the final price after a 40% discount, rounded to the nearest dollar, is $479.