
Answer:
20%
Step-by-step explanation:
According to the Question,
Given that, The average number of subscribers to an online magazine each year from 2010 to 2015 is given in the table.
Year   Number of Subscribers  Percentage increase(20%)
2010 Â Â Â Â 320000 Â Â Â Â Â Â Â Â Â Â Â
2011      384000             320000 × 1.20 = 384000
2012     460800            384000  × 1.20 = 460800
2013     552960            460800  × 1.20 = 552960
2014     663552            552960 × 1.20 = 663552
2015     796262            663552 × 1.20 = 796262