Percentage Calculations: Three Common Mistakes
Check the starting value before calculating a discount, an increase, or a percentage of a total.
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Enter an expression using the keypad or your keyboard. Multiplication and division take precedence; parentheses change the order.
The percent sign divides the preceding number by 100. For example, 200 × 10% gives 20.
Frequently asked questions
Why does 2 + 3 × 4 equal 14?
Multiplication takes precedence: 3 × 4 equals 12, then 2 + 12 equals 14. Use (2 + 3) × 4 to get 20.