Certain stocks in January were 40% less than they were in February and 15% greater than they were in March. What was the percentage decrease in the stocks from February to March? Options
A) 50.81 %  B) 15.11 %  C) 20.7 %  D) 48.8 %  E) 40 %

Rationale: "let stocks value in feb = 100 = > in jan = 60 and march = 60 * 100 / 115 = 51.2 % thus , percent decrease in stocks from feb to march = 100 - 51.2 = 48.8 % hence answer is d"
Answer: D