Question about Casio FX-115ES Scientific Calculator

# I have casio FC-100, there is BGN and SD on the screen. how do i get rid of these. because when i add 1+1=2, instead i get 1,00000+1,00000=2,00000. please help. thanks.

Posted by Anonymous on

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Posted on Jan 02, 2017

Hi. Switch on using the Ac button
Press the TaxSet button - and hold for 2/3 seconds
You will be show either the current tax held or zero
Type in the tax you want ie 15
Now press the taxSet button.

To verify its worked prees Ac button then press the Tax+ button is should now show you 15%. Hope this helps.

Posted on Apr 30, 2009

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I'm in Australia and only going on the program manual for your area, it states that canadian tax is tax on tax? if this is true then you probably entered a code for add on or add in tax and thereby changed it all.

you need the following

1 125
2 225
3 325
4 425

rounding off codes
rounding off to 2 decimal places is 50
rounding up to 2 decimal places is 90
cut off to 2 decimal places is 00

tax system code
tax table with out tax rate 01
tax table with tax rate and add on rate 02

starting point
to get the starting point you multiply by 100 and subtract 1
eg 50 cents = 0.50 X 100 - 1 = 50 - 1 = 49
eg \$4 = 4.00 x 100 -1 = 399

to program the tables go through these steps

go to program 3
subtotal
tax rate
ca/amt tend
starting point eg 0.50 = 49
ca/amt tend
rounding eg 50
tax system eg 04
ca/amt tend
ca/amt tend

here you have 2 choices,

press ca/amt tend to go to the next tax table ie 225 and start over by entering the tax rate and go through the procedure again

or

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