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You take your final price and divide it by the difference in percentage. Then take that figure and divide it by the final discounted difference in percentage.

Here is how you arrive at the final discounted price.

So, it the store gives you a 10% and 15 % discount off the original price you would multiply the original price by .10 to get the first discounted price. Then you would multiply the new discounted price by .15 for the final discounted price.

Here is how to undo the math to arrive back at the original price.

If all your given is the final price and the discounted percentages, you would divide the final price by 90% and then take that price and once again divide by 85%.

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Q: Original cost of an item after two discounts given the final price of what would be the correct formula?
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