Over 700 finance terms, Shmooped to perfection.
Put in a dollar. You expect to get more than a dollar back. If you invested a dollar and 3 years later you got back $3, your return was 300%. You made $2 in profits. But it's still written nomenclature as a return of 300%. If you invested $3 and 3 years later got back (like baby) just $1, your return was negative 67%.