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Value.Subtract is a Power Query M function that calculates the difference between value1 and value2, with an optional precision parameter. The function returns the difference of the two input values, using the specified precision if provided.

Compatible with: Power BI Service Power BI Desktop Excel Microsoft 365


   value1 as any,
   value2 as any,
   optional precision as nullable number,
) as any
Argument Attribute Description
precision optional The Precision.Type specifies the accuracy level for calculations. When omitting this argument, Power Query uses Precision.Double by default, which, while efficient, may cause rounding errors with very small fractions. For greater accuracy Precision.Decimal offers a more precise number representation, ideal for tasks requiring high precision.


Returns the difference of value1 and value2. An optional precision parameter may be specified, by default Precision.Double is used.

Learn more about Value.Subtract in the following articles:

Other functions related to Value.Subtract are:

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Microsoft documentation: