A person bought 115 glass bowls at a rate of Rs. 18 per bowl. He sold 104 of them at Rs. 20 and the remaining broke. What is the percentage gain for A? Choose the correct choice from the following choices: A) 40 B) 300 / 11 C) 243 / 7 D) 279 / 11 E) 100 / 207

Rationale: "cp = 115 * 18 = 2070 and sp = 104 * 20 = 2080 gain % = 100 * ( 2080 - 2070 ) / 2070 = 100 / 207 answer : e"
Answer: E