Olivetti LOGOS 902 Instructions D'emploi page 19

[CALL] Call key
Checks each calculation step by step.
Continuous pressing performs quick replay.
[VOID] Void key
Enables correction for each calculation step.
[TAX +] Tax plus key
Calculates an amount including VAT with Tax rate preset by [RATE] key.
[TAX -] Tax minus key
Calculates an amount excluding VAT with Tax rate preset by [RATE] key.
[RATE] Rate key
Enters Tax rate or Currency Exchange rate.
[EURO] Euro currency
Converts the displayed value to Euro currency.
[LOCAL] Local currency
Converts the displayed value to Local currency.
[√ ] Square root key
Calculates the square root of the contents of the display.
[MU] Mark up key
From a known cost of goods and a desired gross margin, this key
automatically calculates and prints the amount of markup and the selling
price.
[%] Percentage key
Completes percent calculation when [x] or [÷] key is used.
[∆] Delta percent key
Automatically compares any two amounts and then calculates and prints
the percent change.
[÷] Division key
To divide, enter the number to be divided (dividend) and press the [÷] key;
then enter the second number (divisor) and press [=] or other keys as
necessary to obtain result.
If the key is pressed repeatedly, it will make sequential division
calculations.
[X] Multiplication key
To multiply, enter the first number (multiplicand) and press the [x] key; then
enter the second number (multiplier) and press [=] or other keys as
necessary to obtain result.
If the key is depressed repeatedly, it will make sequential multiple
calculations.
ENGLISH 3