Answer: Â Â
Step-by-step explanation:
- According to the given table, the average number of subscribers to the online magazine in 2010 was  320,000.
- Average number of subscribers in 2011 was 384,000 and in 2012 was 460,800.
    So,  the amount of increase [tex]=460800-384000=76800[/tex]
    Now, the percentage of increase      [tex]=\frac{76800}{384000}\times 100\% =0.2\times 100\%= 20\%[/tex]
- According to the given table, the maximum average number of subscribers is in the year 2015.
    So, the maximum average number of subscribers was 769,262.