How to use this tool
Enter one value and weight per line, separated by a comma or space. For example, 80,20 and 100,80 gives 96. Weights may be percentages or other relative amounts; they do not have to sum to 100.
Good to know
Up to 1,000 rows. Values are within ±1 trillion; nonnegative weights up to 1 billion. At least one weight must be positive. Results use 12 significant digits.