Research into specific magazines/ potential competition

I researched two other magazines NME and Q I found out that NME is released weekly and is £2.30 and has around 66 pages. Q is monthly and has 100pages and cost £3.90. I used this information to decide how many pages a fortnightly magazine would be and the price of it. Q sells approx 130,000 a month and NME sells approx 60,000 Every Week.