How much does it cost to replace the drainage pipe under the sink?

Last night I discovered a puddle developing under our kitchen sink. A quick look and the metal pipe going into the bottom of the cabinet (and I’m assuming down into the basement?) is cracked and corroded. Is this something one could fix themselves? My father in law is handy with plumbing. What’s a ballpark figure of how much it would cost to do it ourselves and how much it would cost to have a plumber do it? Thanks!

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