This page covers the

and

keys found on many CALC 1 Calculators used to calculate % change and % of total respectively.

See Calculations Using the Chain (CHN) Calculation Mode, Calculations Using Algebraic Formulas or Calculations Using RPN and the Stack for general percentage calulations.

To | Press (CHN, ALG) | Press (RPN) | Display |
---|---|---|---|

Find the percent change from 320 to 324 | 320 = 324 Δ% | 320 ENTER 324 Δ% | 1.25 |

Find the percent change from 550 to 324 | 550 = 324 Δ% | 550 ENTER 324 Δ% | -41.09 |

Also see the Percent Change Formula Calculator.

To | Press (CHN, ALG) | Press (RPN) | Display |
---|---|---|---|

Find the percent of total 24 is of 320 | 320 = 24 %T | 320 ENTER 24 %T | 7.50 |

Find the percent of total 100 is of 320 | 320 = 100 %T | 320 ENTER 100 %T | 31.25 |

Also see the Percent Of Total Formula Calculator.

Using the "long press" gesture will display a hint about any key. (Video: Displaying a hint) You can inspect the Key Details to see the formulas and functions for any key.