For a school fundraiser, Tory needs to sell 50 packs of cookies. So far, he has sold 12 packs to his grandmother, 7 packs to his uncle, and 5 packs to a neighbor. How many more packs of cookies does Tory need to sell? Let's be accurate as possible.

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
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Tory sold 12 packs + 7 packs = 19 packs to his family members. Tory sold 19 packs + 5 packs = 24 packs in total. He has to sell 50 packs - 24 packs = 26 more packs of cookies to reach his target.
The answer: 26.