Socrata was acquired by Tyler Technologies in 2018 and is now the Data and Insights division of Tyler. The platform is still powered by the same software formerly known as Socrata but you will see references to Data & Insights going forward.

subtract

Function: -
  Subtract a number from another


  Change a number's sign

Examples:

  4 - 2
  -- Result: "2"

  0 - 2
  -- Result: "-2"


  -(-2)
  -- Result: "2"

  -(2)
  -- Result: "-2"
Signatures
number, number -> number
number -> number