Percentage Increase and Decrease Trick Worksheet

Speed calculation lesson 23: Increase or decrease by a percent · Set 603 · 40 questions

The fast method (One-step multiplier): Increase by p%: multiply by (100 + p)% — up 20% is × 1.2. Decrease by p%: multiply by (100 − p)% — down 25% is × 0.75. Easy way to multiply: × the whole number (115 or 75), then ÷ 100.

1. 1.260 increased by 50% =
2. 2.194 decreased by 50% =
3. 3.320 decreased by 30% =
4. 4.200 increased by 50% =
5. 5.710 increased by 40% =
6. 6.388 decreased by 75% =
7. 7.200 decreased by 60% =
8. 8.46 decreased by 50% =
9. 9.265 increased by 60% =
10. 10.660 decreased by 40% =
11. 11.780 decreased by 15% =
12. 12.480 decreased by 15% =
13. 13.740 increased by 5% =
14. 14.190 decreased by 10% =
15. 15.475 increased by 60% =
16. 16.580 increased by 30% =
17. 17.260 increased by 5% =
18. 18.660 increased by 15% =
19. 19.70 decreased by 20% =
20. 20.625 decreased by 12% =
21. 21.695 decreased by 20% =
22. 22.200 decreased by 15% =
23. 23.675 decreased by 8% =
24. 24.590 increased by 20% =
25. 25.205 decreased by 20% =
26. 26.800 decreased by 20% =
27. 27.645 decreased by 60% =
28. 28.430 decreased by 60% =
29. 29.120 increased by 10% =
30. 30.230 decreased by 40% =
31. 31.360 increased by 15% =
32. 32.674 increased by 50% =
33. 33.536 increased by 25% =
34. 34.80 decreased by 60% =
35. 35.314 increased by 50% =
36. 36.680 increased by 10% =
37. 37.280 decreased by 35% =
38. 38.560 decreased by 15% =
39. 39.525 increased by 20% =
40. 40.310 increased by 20% =

Free speed calculation lessons, practice and worksheets at talentjr.in/speed-maths