If selling price of pen is RS. X and loss is RS. Y what is the loss percent​

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Step-by-step explanation:

The marked price of an article is Rs. x, and selling price is Rs. y

Price difference = Rs. (x−y)

Now, on Rs. x, there is a discount of Rs. (x−y)

Thus, on Rs. 100, there will be a discount of Rs.  

x

(x−y)

​

×100%