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Re: Why does Plankton want the formula? Add answer
Plankton wants the "Secret Krabby Patty" formula because if he ever gets it (probably never) he will make the exact Krabby Patty from Krusty Krab on his restauraunt and thus, become rich. He will also accomplish his goal of finally winning the feud with Mr. Krabs since the episode, Friend or Foe.