You can solve this type of calculation with your own values by entering them into the calculator's fields, and click *'Calculate'* to get the result and explanation.

- 60 is 5 percent of what number
- 20 is 20 percent of what number
- 41 is 50 percent of what number
- 140 is 70 percent of what number
- 25 is 25 percent of what number
- 18 is 30 percent of what number
- 4 is 20 percent of what number
- 90 is 50 percent of what number
- 18 is 75 percent of what number
- 16 is 64 percent of what number

- 28 is 70 percent of what number
- 18 is 45 percent of what number
- 10 is 5 percent of what number
- 49 is 35 percent of what number
- 6 is 8 percent of what number
- 84 is 21 percent of what number
- 42 is 20 percent of what number
- 250 is 40 percent of what number
- 4 is 2 percent of what number
- 3 is 12 percent of what number