As the VAT has changed in the UK to 15% instead of 17.5% i need to change this on my Casio calculator. I have a Casio MJ 100. Please help me!

For MJ-100D/120D
http://support.casio.com/storage/en/manual/pdf/EN/004/MJ-100D_MJ-120D_EN.pdf

It is used for calculating markup. For example, if you have an item at $100 and have a 20% markup, you get $120.


http://support.casio.com/storage/en/manual/pdf/EN/004/MJ-100D_MJ-120D_EN.pdf

Hello,
Here is a more accurate formula

Let P be the retail price, let the tax rate be 15%
What a customer must pay is
P(1+ 15%) =P(1.15). If P=100.00
100 +15%of 100 = 100 +15=115.00
100x1.15=115.00

press and hold % button until disply current rate. Then enter newrate and press % agian.

1-press and hold "SET/%" key 2- "set" will appear on screen 3-press "tax+" key 4-type tax amount ie 17.5 5-press "set" key to complete done.

Hi, I just asked the same thing - the answer's here, see other people's answers - great help!

To change the VAT rate:-

1) Press the [CA] button

2) Hold the [SET/%] button for about three seconds until the display reads 0.

3) Type 15 for the new rate of VAT

4) Press [TAX+} button

5) Press the [CA} button

To check the new rate you have press [CA] and [TAX+] to show the current rate, the [VAT-] is linked to the [VAT+] button and doesn't need changing.

Hope this helps

Hi.
Has it had the system options set for tax? Was it calculating previously? Usually you just need to change the rate when you have a tax increase.

Mark

How do I program tax rate into my calculator? Non-printing models (also applies to HR-8TE printing calculator):

1. Press [AC]
2. Hold [SET/%] key for about 2 seconds
3. Press [TAX+]
4. Input the tax rate
5. Press [SET/%]

Type 100 x 20%, and then hit the minus button