Star Frontiers is a percentile system using d10 and d100 rolls.

d100 Macro with Modifier

/r (1d100) + ?{Mod|0}

The same as an Inline Roll.

/em rolls a [[1d100 + ?{Mod|0} ]]

Example output:
C'hting rolls a 47

Macro for Initiative, add to Tracker (Inline Roll)

/em rolls initiative [[1d10 + ?{Mod|o} &{tracker} ]]