Multiply all the values together
Count how many values there are
Take the nth root of the product, where n is the number of values
Use the formula: Geometric Mean = (x1 × x2 × x3 × … × xn)^(1/n)
For two values, use: Geometric Mean = √(x1 × x2)
For three values, use: Geometric Mean = ∛(x1 × x2 × x3)
Ensure all values are positive before calculating
If using logarithms, take the antilog of the average of the logs of the values