Calculating percents

This car cost 8537 € before the discount was made. How much money does the discount consists in?

€

Before the sales, the bodice cost 250 €. How much does it cost now?

€

The annual rate of a bank book is 4.75 %. Calculate the annual interest of a capital of 832 €.

€

This cereal box usually weighs 450g. What is its new mass?

Before the definitive closing of a bookstore, a bookseller anounces a 80 % discount on the purchase of 7 collectors' books. Mr Johns buys 7 books which cost 32 € each. How much will he spend?

€