Percentage functions

**Percentage Functions**

MyCalc2 includes three keys for solving percentage problems:'%', '%T' and 'Δ%'. You'll find these function in finance mode, Fn2 position.

You don’t need to convert percentages to their decimal equivalents; this is done automatically when you press any of these keys. Thus, 4 % need not be changed to 0.04; you key it in the way you see and say it: 4 %.

**Percentages**

To find the amount corresponding to a percentage of a number:

1. Key in the base number.

2. Press 'Enter'.

3. Key in the percentage.

4. Press '%'.

For example, to find 12.5 % of 250:

Keystroke |
Display |

250 |
250 |

Enter |
250.00 |

12.5 |
12.5 |

% |
31.25 |

**Net Amount**

A net amount — that is, the base amount plus or minus the percentage amount — can be calculated easily with MyCalc2. To calculate a net amount,simply calculate the percentage amount, then press -.

Example: You’re buying a new car that lists for $ 22000. The dealer offers you a discount of 7 %, and the sales tax is 19.6 %. Find the amount the dealer is charging you, then find the total cost to you, including tax.

Keystroke |
Display |

22000 |
220000 |

Enter |
22000.00 |

6 |
6 |

% |
1320 |

- |
20 680,00 (Base amount less discount) |

19.6 |
19.6 |

% |
4053.28 |

+ |
24 733,28 (Total cost: base amount less discount plus tax) |

**Percent Difference**

To find the percent difference between two numbers:

1. Key in the base number.

2. Press 'Enter' to separate the other number from the base number.

3. Key in the other number.

4. Press 'Δ%.'

If the other number is greater than the base number, the percent difference will be positive. If the other number is less than the base number, the percent difference will be negative. Therefore, a positive answer indicates an increase, while a negative answer indicates a decrease.

Example: Two months ago you bought some actions at $ 25.15. Today their value is $ 9.75. What is the percent change?

Keystroke |
Display |

25.15 |
25.15 |

Enter |
25,15 |

19.75 |
19.75 |

Δ% |
-21.47 |

Nearly a 21.5 % decrease.

**Percent of Total**

To calculate what percentage one number is of another:

1. Type the total amount.

2. Key in the number whose percentage equivalent you wish to find.

3. Press '%T'.

Example: Last month, your company sales 329 red cars.The total number of cars sold was 4500; What percentage of the total sales were red cars?

Keystroke |
Display |

4500 |
4500 |

Enter |
4500.00 |

329 |
329 |

%T |
7.31 |

You sold 7.31 % of red cars.

Copyright © <2016>, <Serge Nicolas>