drag a formula downa column keeping one value the same?

[column formula with a constant value]

I need to drag a formula down a column, but keep one value constant (when I
drag the formula down, the values in the formula change according to the row,
but I need to keep one constant so each cell's formula refers to one specific
cell.)

Ex. - =IF(L30>40000,L1*.60,=IF(L30<20000,L1*.5,=IF(L30<40000,L1*.55,0)))

I need to keep the L30 values the same, while the L1 changes for each row,
but when I drag this formula down the column, the L30 changes.

Thanks!

 

[Paul C]

Change your L30 to a absolute reference $L$30

 

[column formula with a constant value]

Perfect...Thank you Paul!

Change your L30 to a absolute reference $L$30

 

[David Biddulph]

Firstly, your formula wouldn't work anyway, because you've got 2 spare
equals signs in there. It's always best if you copy and paste your actual
formula in here, rather than typing something different.

Secondly, what you need to look at is the difference between relative and
absolute addressing. Excel help will explain it.

Try =IF(L$30>40000,L1*0.6,IF(L$30<20000,L1*0.5,IF(L$30<40000,L1*0.55,0)))