When the formula is written as above, Excel performs the subtraction equation within parentheses first, then multiplies the resulting values by the B1:B3 array, giving a result of 48. The multiplication of the arrays B1:B3 and B1:B3 was carried out first, then the resulting values were subtracted from A1:A3, to return a value of 18. In the above formula, Excel performed the multiplication operation first, following the PEMDAS (Parentheses – Exponents – Multiplication – Division – Addition – Subtraction) order of operations rule. Produces a different result from SUMPRODUCT((A1:A3-B1:B3)*B1:B3) Of course, if other arrays are introduced, it’s a good idea to use parentheses so that the operations are performed in the desired order.įor example: = SUMPRODUCT ( A1 : A3 - B1 : B3 * B1 : B3 ) Performing a subtraction operation would apply the same principle. Will divide the value in A1 by the value in B1, the value in A2 by the value in B2, and the value in A3 by the value in B3, and add the results. After all the operations have been performed, the results are summed as usual.įor example: = SUMPRODUCT ( A1 : A3 / B1 : B3 ) To use SUMPRODUCT to perform division, addition, or subtraction on arrays separate each argument with the appropriate arithmetic symbol (/, +, -) for the operation required. Since Excel columns have over one million rows, you’d be asking Excel to scan through all those rows, which unnecessarily slows down the performance of your worksheet. It isn’t a good idea to use SUMPRODUCT with full column references (for example, A:A or B:B).If any array argument contains non-numeric values, they will be treated as zeros. Arrays must be of the same size for the SUMPRODUCT function to work.If only one array is used, SUMPRODUCT will simply add all the values in the array.But the results are stored in memory, and then added together to get the grand total of $566.40. Once the amount paid for each product has been calculated, we would then find their total.Įxcel simplifies this entire process with SUMPRODUCT. To calculate the amount spent on the grocery items above, the usual way to perform this manually would be to expand each row by multiplying B2 by C2, B3 by C3, and so on, placing the results in column D. The basic use of SUMPRODUCT is illustrated in the example below. SUMPRODUCT returns a single value which is the sum of the product of the arrays used in the formula. Array2 and all subsequent arrays are optional. Array2 is the second range or array to be multiplied.Array1 is the first range or array to be multiplied.To use the default operation (multiplication), the syntax is: = SUMPRODUCT (array1,.
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