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CALC 1 Percentage Change and Percent of Total Calculations

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.

Percent Change Key Examples

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.

Percent of Total Key Examples

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.