This function returns the number of cells that contain numbers.
COUNT(value1,value2,...)
COUNT(array)
The arguments may be separate values or an array of values. Up to 255 arguments of individual cells may be included.
This function counts the number of cells that contain numbers in the specified cell range.
This function differs from COUNTA which also includes text or logical values as well as numbers.
Accepts cell references. Returns numeric data.
COUNT(B2,B5,B8,D5,D8)
COUNT(A1:G5)
COUNT(R6C3:R9C4,2)