what is meaning of marked price?

The phrase 'marked price' simply means the cost you would pay at the checkout. When a shop needs to get rid of stock quickly, it will often sell products labelled '10% off marked price' - in which case, the checkout will deduct 10% off the regular price of the item, before totalling the amount you need to pay. For example - say a dress was marked at 25.00 - and had a label 10% off marked price'... at the checkout, the till would deduct 10%, and you would only pay 22.50 !