- Calculate percentages (X out of Y) quickly and easily.
- Display percentage as a number and a pie chart.
- Switch between inputting number of right and wrong answers.
- Switch between displaying percentage correct and percentage incorrect.
- Calculate tips quickly and easily.
- Automatically calculates your total.
- Continuously calculate tips between 10% and 20%.
- Instantly determine 10%, 12%, 15%, 18%, and 20% tips.
- Easily round tips.
- Easily round totals.
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