Sum if cell contains text in another cell
The SUMIF function supports wildcards. An asterisk (*) means "zero or more characters", while a question mark (?) means "any one character".
Wildcards allow you to create criteria such as "begins with", "ends with", "contains 3 characters" and so on.
So, for example, you can use "*hat*" to match the text "hat" anywhere in a cell, or "a*" to match values beginning with the letter "a".
In this case, we want to match the text in F6. We can't write the criteria like "*F6*" because that will match only the literal text "F6".
Instead, we need to use the concatenation operator (&) to join a reference to F6 to asterisks (*):
When Excel evaluates this argument inside the SUMIF function, it will "see" "*hoodie*" as the criteria:
SUMIF then returns the sum for items that contain "hoodie", which is $27.00 in the example shown.
Note that SUMIF is not case-sensitive.
Alternative with SUMIFS
You can also use the SUMIFS function. SUMIFS can handle multiple criteria, and the order of the arguments is different from SUMIF. The equivalent SUMIFS formula is:
Notice the sum range always comes first in the SUMIFS function.
See this page for a list of available wildcards.