1. Click on the "Question" box if you wish use a provided question. [br]2. Type in the amount representing 100% in the "Total" box.[br]3. Click on the "Part value" box to show what 10% would be.[br]4. Adjust the slider to select the appropriate percentage.[br]5. Click on "Selection value" box.[br]6. Check the solution if you used the provided question by clicking on "Solution" box.[br]7. Click on the "Reset" button to start again and get a new question.