12 × (1 - 30/100) is 8.4

Follow the following steps to work out percentage problems of the form "What is 30 percent off 12?".

- 30% of 12: (30 / 100) * 12 =
*3.6* - 30% off 12:
*12*-*3.6* - =
*8.4*

In a standard calculator that supports percentage arithmetic, you can arrive at the answer by pressing **12** - **30** %.

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