# some more help!

#### collinsc

##### Board Regular

With regard to the below formula, i now understand that the \$ is absolute and the words in '...' are sheets in the same book. what does the "y" mean? does that mean "input a y in this cell, if the SUM us true"?

=SUMIF('Project Resource Plan'!\$B\$3:\$B\$137,"y",'Project Resource Plan'!AW3:AW138)

What exactly is the difference between SUM and SUMIF ?

Thanks very much

### Excel Facts

Which lookup functions find a value equal or greater than the lookup value?
MATCH uses -1 to find larger value (lookup table must be sorted ZA). XLOOKUP uses 1 to find values greater and does not need to be sorted.
If in the range b3:b137 a cell has the value "y", then sum the corresponding values found in aw3:aw138.

Sumif conditionally totals a range based on criteria, sum just totals all entries.

Good morning collinsc

If you could write formulae in plain English, your formula would say :

Add up the values in the range AW3:AW138 only if the value in the corresponding row of column B is equal to "y".

The function SUM adds a whole range (or a number of ranges), SUMIF will look at a whole range and only add the values if a certain condition is met.

HTH

DominicB

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