change cell value greater than another cell value using formulas

[Guest]

A+B=C
Say that A and B must equal 10. For A, you input calculations using other
formulas and get that A=6, so automatically B must equal 4. However, say that
as a constraint, B has to equal 7 or greater. How do you make that cell
change the value in order to impose this new constraint either using formulas
or another method but not changing the values manually?

(If B is 5 for example, we order 7. But if B is 8 we leave it at 8.)

Thanks

 

[Sandy Mann]

In B enter the formula:

=MIN(7,formula to calculate B)

--
HTH

Sandy
(e-mail address removed)
(e-mail address removed) with @tiscali.co.uk

 

[Bill Kuunders]

In cell B1 enter =IF(AND(A1>3,A1<10),7,IF(A1>=10,0,10-A1))
The variable is in A1 not in B1
B1 is the result of the calculation.
If A1 is greater then or equal to 10 I assume you do not want to add any.

you could store the values 7 and 10 in seperate cells sp that if there is
any change to the condition
you only need to change those cells
E1=7 (min order quant)
F1=10 (req stock)
formula is now
=IF(AND(A1>F1-E1,A1<F1),E1,IF(A1>=F1,0,F1-A1))