1Why is profit percentage always calculated on the cost price and never on the selling price?
2What is the difference between marked price and cost price, and why does it matter?
3An item sells for Rs 600 at a 20% profit. Why is the cost price not Rs 480?
4Two shirts are sold at Rs 900 each, one at 20% profit and one at 20% loss. Why is this not break even?
5How large a discount can a shop afford to offer without making a loss?