# add to an existing formula

Copper Contributor

# add to an existing formula

Hi

I am struggling to find a solution to the following problem.

I have a spreadsheet with a formula in D6 set up to multiply a number in C6 by 16.5   =C6*16.5

C6 contains the number 12.00 which inturn gives a total of £198 in D6

I now need to deduct 3% from the total and I cant find a way to do that, iunfortunately the spreadsheet has 100s of entries so it would take forever to go in and deduct 3% from each figure.

any help would be much appreciated.

2 Replies

# Re: add to an existing formula

As a two step calculation using 'send down' you could have

``````= C6 * 16.5
= D6 * (1-3%)``````

Personally, I do not use calculations like that and would instead use an array formula that applies to the 100s of cases with one single formula

``= values * 16.5 * 97%``

# Re: add to an existing formula

Hi
Dont think I can use an array as there are several different amonts etc. column D ia multiplied by 16.5 Column F is multiplied by 18.5 column G is multiplied by 19 etc etc