word math problem, math homework help

The table shows the number of monthly active users of a social media website (the number of people who use the website at least once a month) over a three-year period. Complete parts (a) through (c).

Month	March2009	March2010	March2011	March2012
Monthly active users (millions)	201	451	687	926
Absolute change over previous year	—
Percent change over previous year	—

Fill in the row of the table showing the absolute change in the number of active monthly users.

Month	March 2009	March 2010	March 2011	March 2012
Monthly active users (millions)	201	451	687	926
Absolute change over previous year	long dash—	%	%	%

(Type integers or decimals rounded to the nearest tenth as needed.)