1. A retail outlet marks up its inventory by 15%. Due to a high-demand season, they add a further 10% surcharge on top of that new price. What is the total percentage increase from the original cost?

2. A logistics company increased its flat rate for local deliveries from €12.00 to €13.80. If the international rate was €40.00, what is the new international rate if the same percentage increase is applied?

3. A vendor buys a carton of 48 energy drinks for €72.00. They sell them in smaller 4-packs for €9.50 each. What is the total profit if they sell two full cartons?

4. A consulting firm charges €200 per hour for a junior associate. They increase this by 8%. If a senior partner’s rate of €350 is increased by the same percentage, what is the partner's new hourly rate?

5. A factory produces 250 units in a 5-hour window. If they improve efficiency by 20%, how many units will they produce in an 8-hour shift?

6. A subscription service was priced at €15.00. The price was reduced by 20% for a promotion, but later increased by 25% from that promotional price. What is the current price?

7. A wholesaler buys 20kg of coffee beans for €160. They repackage the beans into 500g bags and sell each bag for €6.50. What is the profit on the full 20kg?

8. An investor’s portfolio grows by 10% in the first half of the year but loses 10% of its value in the second half. What is the total change for the year?

9. A service fee is €45.00 plus 12% tax. If a 5% processing fee is then added to the total (including tax), what is the final amount to be paid?

10. A designer buys fabric at €15 per meter. They use 2 meters to make a pillow and sell the pillow for €45. What is the profit margin (as a percentage of the selling price) on one pillow?

11. A project requires 120 man-hours. If the team size is increased by 50% and efficiency per person remains the same, how many hours will the project take now?

12. A car's value depreciates by 15% each year. If a car is worth €20,000 today, what will its value be in two years?

13. A printing company charges €0.05 per page, but gives a 20% discount on orders over 500 pages. How much does it cost to print 800 pages?

14. A tech support firm increases its monthly retainer from €400 to €460. If they apply the same percentage increase to their on-site visit fee of €150, what is the new visit fee?

15. A courier travels 300km in 4 hours. If they increase their average speed by 10%, how far will they travel in 5 hours?

16. A grocer buys 12kg of apples for €18.00. If 2kg are bruised and cannot be sold, at what price per kg must the grocer sell the remaining apples to make a 50% profit on the original cost?

17. A stock was worth €80. It increased by 25% but then dropped by 20%. What is the current value of the stock?

18. A manager's salary increased from €50,000 to €53,500. Using the same percentage, what would a salary of €62,000 become?

19. An employee is paid €24 per hour for a 40-hour week. If they work 45 hours and the 5 extra hours are paid at 'time-and-a-half' (1.5x), what is their total weekly pay?

20. A company’s revenue was €1.2 million last year. This year it grew by 15%. If it is projected to grow by another 10% next year, what is the projected revenue?

21. During a recent recruitment drive, it was found that 14% of all applicants successfully passed the technical assessment. If 21 applicants passed, what was the total number of applicants?

22. A real estate developer increased the price of a unit by 15%. Six months later, the new price was increased again by 10%. What is the total percentage increase from the original price?

23. The registration fee for a legal seminar is €800. Additionally, there is a materials fee of €120. If the materials fee is paid after the deadline, it is increased by 20%. What is the total cost for a late registrant?

24. A telecommunications provider increased its plan prices by a fixed percentage. Plan A rose from €40.00 to €44.00. What is the new cost of Plan B, which previously cost €55.00?

25. A fruit wholesaler buys crates of 10 items for €15.00 and sells them in pairs for €4.00. What is the wholesaler's profit if they sell 50 items?

26. An investment fund increased in value by 5% in the first quarter and then by another 5% in the second quarter. What is the total percentage increase for the half-year?

27. In a quality control check, it was discovered that 32% of the total shipment had packaging errors. If there were 48 items with errors, how many items were in the total shipment?

28. An online course costs €1,200, plus a €200 exam fee. If the exam fee is paid late, the exam fee is increased by 15%. What is the total cost of the course for a late payer?

29. A company applies late charges as a fixed percentage of the bill. An invoice for €1,000 became €1,060 after the charge was added. What would an invoice for €2,200 become?

30. A retailer buys batteries in packs of 24 for €48.00 and sells them in sets of 4 for €10.00. What is the total profit if the retailer sells 120 batteries?

31. A parts supplier increased its prices by a fixed percentage. Part X rose from €60.00 to €63.00. What is the new cost of Part Y, which previously cost €80.00?

32. An importer marks up a shipment by 25%. The wholesaler then adds a 20% markup on top of that. What is the total percentage increase from the importer's original cost?

33. A service tax of 12% on a transaction amounts to exactly €54.00. What was the original price of the transaction before tax was added?

34. A vacation package costs €1,500 plus a mandatory €100 insurance fee. If the insurance fee is not paid in advance, it increases by 25%. What is the total price for a late payment?

35. A stationery shop buys pens in boxes of 6 for €3.00 and sells them in packs of 2 for €1.50. What is the total profit on 60 pens?

36. A stock price increased by 10% on Monday, but then decreased by 10% on Tuesday. What is the net percentage change relative to the original price?

37. A utility bill increased from €800 to €832 due to late fees. If another bill for €1,500 is subject to the same late fee percentage, what will the new total be?

38. A server room is at 45% of its total storage capacity. If the current used space is 360 Terabytes, what is the total storage capacity of the room?

39. A software license costs €500, with a €80 setup fee. If the setup fee is paid late, it increases by 10%. What is the total cost for a late setup?

40. A bakery buys dough in 12kg batches for €6.00 and sells small loaves (using 250g each) for €1.00. What is the profit on 12kg of dough?