Thanks for the speedy reply and spot on advice !! Appreaciated.

"Bob Phillips" wrote:

Create a table in say M1:N20 with values of 0, 25%;350,40%; etc. and then
assuming the lookup value is in E1 and the value to be added to is D1, use

=D1*(1+VLOOKUP(E1,M1:N20,2))

--
HTH

Bob Phillips

(remove nothere from email address if mailing direct)

"Big Bad Nige" wrote in message
...
Can anyone help me, Im trying to create a data sheet, basically I need to
enter a height value, then I need it to look at the value entered for the
height and if its up to 350mm then it must add 35% to a second value, if
its
up to 600mm then it must add 40% to a second value and so on and on. Im
not
sure if i should be using lookup function or an IF function ? Any pointers
would be appreaciated. Nige