Percentages
Find a percentage, work out a change, or recover the original value.
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Starting the new round uses one practice start.
Example
Example
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Choose a question type and difficulty, then start. Each answer includes a worked calculation.
More percentages and decimal answers
10 questions · No time limit
- Questions answered
- 0 / 10
- Active time
- 0:00
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Reload pageExplore the method
Find 10% first, then build the percentage you need from it.
On by default unless you turn it off. Saved choices are kept. Shares starts, completions, replays and error categories. For ChatGPT visits, starts and completions may include the first QuickenBrain page and country. No answers, drawings or names.
How this data is usedHelp
Choose a question type and difficulty. Find a percentage of a number, calculate an increase or decrease, or find the original value before a change. Mixed mode includes all three types.
Enter an exact answer as a whole number, decimal or fraction. For a fraction, use a slash, such as 5/2. Equivalent fractions are accepted. Do not add units or a % sign.
Check submits your response. Read the calculation, then choose Next question when ready. The original value is always the base for an increase or decrease.
Use Tab to reach the answer field and controls. Press Enter in the answer field to check your answer.
Finish all ten questions to save a result on this browser. Ending early saves no completed round. Active time includes answering and reading the calculation while this page is in the foreground. Background tabs do not count. There is no time limit or speed bonus.
About this practice
Learn a method
Find a percentage in your headFind a percentage, work out a change, or recover the original value.
Report a problem
On by default unless you turn it off. Saved choices are kept. Shares starts, completions, replays and error categories. For ChatGPT visits, starts and completions may include the first QuickenBrain page and country. No answers, drawings or names.
How this data is used