The French suffered losses of 4,000 men killed, wounded or captured out of a total of 5,000.
Between the army and the coastal forts the Spanish captured 100 artillery pieces.
Cuesta's 8,000-man force sustained only 300 casualties.
Hearing of the collapse of his left wing, Aoust ordered a retreat toward Perpignan on 21 December.
The Army of Catalonia rushed in pursuit, Ricardos sending his cavalry across the Tech at Brouilla in an attempt to envelop the French from the east.
Jerónimo Girón-Moctezuma, Marquis de las Amarillas pursued in the center with 6,000 Spanish troops while Portuguese general John Forbes with five battalions closed in menacingly from the west.
In the crisis, Catherine-Dominique de Pérignon's brigade blocked the Portuguese at Saint-Luc, causing Ricardos to hesitate and allowing the French to scramble to safety.
Even so, the French lost 7,700 men and 23 guns before they reached a secure position at Perpignan and its entrenched Camp de l'Union.
There were only 8,000 soldiers left with the colors.

Since all the other French armies had been successful by the end of 1793, the National Convention issued a decree criticizing the Army of the Eastern Pyrenees.
Aoust, who became the army commander just as the disaster struck, was recalled and later executed.
He went to the guillotine on 2 July 1794.
Delattre was executed the same day.
January 1794 brought huge changes.
The new French commander Jacques François Dugommier came with 10,500 troops after successfully concluding the Siege of Toulon in December.
Ricardos died on 13 March 1794, allegedly from a cup of poisoned chocolate.
His freshly appointed replacement Alejandro O'Reilly died of a stomach ailment ten days later.
Finally, Luis Firmín de Carvajal, Conde de la Unión was named the new leader of the Army of Catalonia.
The French suffered losses of 4,000 men killed, wounded or captured out of a total of 5,000. Between the army and the coastal forts the Spanish captured 100 artillery pieces. Cuesta's 8,000-man force sustained only 300 casualties. Hearing of the collapse of his left wing, Aoust ordered a retreat toward Perpignan on 21 December. The Army of Catalonia rushed in pursuit, Ricardos sending his cavalry across the Tech at Brouilla in an attempt to envelop the French from the east. Jerónimo Girón-Moctezuma, Marquis de las Amarillas pursued in the center with 6,000 Spanish troops while Portuguese general John Forbes with five battalions closed in menacingly from the west. In the crisis, Catherine-Dominique de Pérignon's brigade blocked the Portuguese at Saint-Luc, causing Ricardos to hesitate and allowing the French to scramble to safety. Even so, the French lost 7,700 men and 23 guns before they reached a secure position at Perpignan and its entrenched Camp de l'Union. There were only 8,000 soldiers left with the colors.
Since all the other French armies had been successful by the end of 1793, the National Convention issued a decree criticizing the Army of the Eastern Pyrenees. Aoust, who became the army commander just as the disaster struck, was recalled and later executed. He went to the guillotine on 2 July 1794. Delattre was executed the same day. January 1794 brought huge changes. The new French commander Jacques François Dugommier came with 10,500 troops after successfully concluding the Siege of Toulon in December. Ricardos died on 13 March 1794, allegedly from a cup of poisoned chocolate. His freshly appointed replacement Alejandro O'Reilly died of a stomach ailment ten days later. Finally, Luis Firmín de Carvajal, Conde de la Unión was named the new leader of the Army of Catalonia.
Battle of Collioure