90 percent off 15

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Discount: $13.50

Final Price: $1.50

Details

Discount = Original Price × Discount % / 100

Discount = 15.00 × 90/100

Discount = 15.00 × 0.90

You save = $13.50

You can easily calculate the discount or percent-off and the final or Final Price of an item by following these steps:

1. Multiply the original price by the discount percentage, then divide it by 100 :

15.00 times 90 divided by 100 =

15.00 × 90 / 100 = 15.00 × 0.90 = 13.50 (This is the discount).

2. Subtract the discount (percent-off) from the original price to get the final price:

15.00 minus 13.50 = 15.00 - 13.50 = 1.50.

So, an item that costs 15.00, when discounted 90 percent, will have the final price equal to 1.50.