EPAs way of estimating MPG equivalence is based on some estimates of energy consumed.
With some questionable assumptions.
If I calculate the equivalence based on dollars consumed I come out with about 330MPG.
If I amortize into my cost per mile the long term battery replacement costs (being forced to make some rather uncertain middle of the road assumptions about battery life and future replacement cost) I come out with about 90 MPG.
As for trying to pre calculate YOUR range from the stated mitsu claimed or EPA ranges, iMO it's at best an interesting exercise and at worst a fool's errand
Range varies SO widely base on terrain , speed, leadfootedness, tire pressure, use of heater or not, etc.
You might get as much as 130 miles per charge or as little as, say, 45 (like if you get out on the interstate and haul ass at 80 mph running the heater full blast.)
Next to actually testing your range under your driving conditions, IMO you'd do best describing them (speed, hills, route, etc) here and asking folks here to give your their best guesses.
You didn't say you driving speed and hills or lack of hills.
But if if had to make a wild guess fro what you wrote I'd say if you're not running heater or much AC and not a lead foot,, probably safe to say you can expect 70 to 80 mile range.