Yes you can do that.
Get the data value captured into a variable, scale it (subtract 100), multiply it by 100, and divide it by 256.
Like this:
IF Module #1 BOBCAT-L is < 999 //"If Compare Bobcat Data" instruction
THEN Load Data to Variable #1 //capture it
THEN Variable #1 - 100
THEN Variable #1 * 100
THEN Variable #1 / 256
THEN Variable #2 = Variable #1 //save as final value
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"If you don't know what you're doing, do it neatly..."