Docs / Math
Subtract is an AMPscript function in the math category.
Subtract(a, b)
%%=Subtract(10, 4)=%%
6
Output produced by AmpSend's AMPscript engine (validated against Salesforce's own test corpus) - not a hand-written result.
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Subtract in the official AMPscript reference - or browse the official index of AMPscript functions for platform behavior and edge cases.