Keyboard Maestro Wiki

The %Calculate%<formula>% token returns the numeric result of performing a calculation,
where <formula> may be any of the following:

• Mathematical formula like (2 + 3)*12
• Use any Variable which may be evaluated as a number, like
  (MyVarWordsPerSec * 60)/MyVarWordsPerPage would yield the number of pages per minute
• Use any of the built-in Keyboard Maestro functions, like RANDOM(10)
• Get the numeric value of an Variable array element, like MyVar[2]
  “10,05,12,08” returns “5”
  (Arrays may contain only numeric data)

A reminder that the following are only equivalent if the Variable is numeric:

• %Variable%Count%
• %Calculate%Count%

So, if MyVar is “005”, then

• %Variable%MyVar% will return 005
• %Calculate%MyVar% will return 5