This function returns the sum of products of cells. Multiplies corresponding components in the given arrays, and returns the sum of those products.
SUMPRODUCT(array1,array2,...)
There must be at least two arrays (array1, array2) and optionally up to 255 arrays (array3, ...) as arguments. The arrays must have the same dimension.
Accepts numeric data for all arguments. Returns numeric data.
SUMPRODUCT(A1:A17,B1:B17,C1:C17)
SUMPRODUCT({2,3,5,6,4,7},{5,6,4,4,7,2}) gives the result 114