SUMPRODUCT(...)
How to sumif with text as criteria.
Used Functions
Category: Math and trigonometry
Returns the sum of the products of corresponding array components
Syntax
SUMPRODUCT(array1, [array2], [array3], ...)
Practice SUMPRODUCT Formula at Sheetzoom
SUMPRODUCT formula at Microsoft helpCategory: Information
Returns TRUE if the value is text
Syntax
ISTEXT(value)
0
The formula uses SUMPRODUCT() with function ISTEXT() to check if the cell contains text and adds the corresponding value againt it to get the final sum.