Artificial intelligent assistant

How to calculate percentage saved for goods I have a product which has retail price and asking price. The retail price is $999$ and d asking price is $500$. How can I calculated the percentage saved? * retail price = $999$ * asking price = $500$ * percentage saved = %? Thank you

$$\text{percentage saved}=\frac{\text{amount saved}}{\text{original price}}\times 100\%$$

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