The cost price of orange juice in bottle P is Rs. 68 per liter, and the cost price of orange juice in bottle Q is Rs. 48. When the orange juice in bottles P and Q is mixed, the store owner sells 50 liters of this mixture at the cost price of orange juice in bottle P, making a profit of 12%. If the same mixture is sold at the cost price of orange juice in bottle Q, what is the percentage of loss or profit earned by the store owner?