The document contains 7 math word problems involving calculating percentages. The problems include: calculating a 7% discount on a 68 euro price; calculating the price of jeans without 16% IVA; calculating original costs excluding 12% IVA for given totals; calculating the final price of an oven with a 17% IVA and 12% discount on the total; calculating the percentage increase of students from 20 to 35; calculating the percentage increase of employees when 230 new people were hired and there were originally 1560; and calculating the percentage discount when a coat was paid for at 215 euros with an original price of 230 euros.