The cost of setting up a juice corner is Rs. 1000. The cost of running the juicer is Rs. 120 per 100 glasses and the cost of electricity is 60 paise per glass. The juice sold at Rs. 2.75 for each glass. 900 glasses are made, but only 784 glasses are sold. What is the sum to be obtained from the advertisement to give a profit of 10% on the cost?