This guy just paid $900 to replace both front bearings.
Taking everything apart just to replace the front wheel bearings is a bit labor intensive. And if the shop is sourcing the parts from a Mitsubishi dealer (and then marking them up 40%), then about 1/2 of the cost of this job is going to be in parts. See the bill posted in the link above.
If you don't have a lot of money, tools or time...then consider just replacing your entire knuckle assembly (with a used one) if you have a bad bearing. See the thread referenced above.
Be sure to diagnose your problem. Just don't throw new front wheel bearings on if you aren't sure that's when your problem is. The noise could be rear wheel bearings...which are easier to replace.
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View my fuel log 2015 Mirage ES 1.2 manual: 52.2 mpg (US) ... 22.2 km/L ... 4.5 L/100 km ... 62.6 mpg (Imp)