If Jada left a job that paid $40,000 per year. Jada's economic profit is -$1,000.
Using this formula
Economic profit=Total revenue -(Explicit costs + implicit costs)
Let plug in the formula
Economic profit=$90,000-[$50,000+$40,000+($20,000×5%)]
Economic profit=$90,000-($50,000+$40,000+$1,000)
Economic profit=$90,000-$91,000
Economic profit=-$1,000
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