vat formula

[John]

Can anyone tell me what formula I can use to calculate the cost before
vat based on the rate here in the UK before and after 1 December?

I know roughly what I want but don't know how to correctly put this
into a formula.

E.g.
I have the date in column J2 e.g. 30/11/2008
The total in column K2 for example £100
In column L2 I will have a formula something like this:
IF date in column J2 = < 01/12/2008 sum K2 / 117.5 * 100 IF date in
column J2 is equal to or > than 01/12/2008 sum k2 /115 * 100 else
return error.

So it would give the answer £85.11 with the date as 30/11/2008. If
the date was 01/12/2008 or 02/12/2008 then it would give answer
£86.96.

Thanks for your help with this

John

 

[muddan madhu]

try this

=IF(J2<DATE(2008,12,1),K2/117.5*100,K2/115*100)

 

[ob-server]

for row 2

use generic helper column

G2=117.5 <vat factor before 01/12/2008>
H2=115 <vat factor for 01/12/2008 onwards>
I2=01/12/2008

J2 =30/11/2008
K2=£100.

maybe this can give exact vat
L2=roundup((K2/$G$2*100)*(J2<$I$2) + (K2/$H$2*100)*(J2>=$I$2),2)

regards