Formula's

[xlnovice]

Hi, I've been scratching my head trying to get this to work

the basics are as follows

A1 + B1 = C1 (D1 = C1*20%-B1)


eg

800 + 200 = 1000 ( 0 )



Now I want to change the value in A1 but need a formula for B1 so that (D1 = C1*22%-B1) leaving value (0)

[ChemistB]

So you know what value you want in A1 but need to find out what value you need in B1? If that's so, try using Solver setting value of D1 to 0 and solving for B1. Would that work for you?

[daddylonglegs]

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[xlnovice]

Can soon leave and find out elsewhere, don't need gobshytes like you on my case thank you

[shg]

We shan't delay your departure.