The given diagram illustrates the changes that the community center 
was
 Verb problem
has
undergoed
 in the past 10 years. As it might be seen, the changes were quite Correct your spelling
undergone
drastical
, since not only almost all rooms were shifted, but Correct your spelling
drastic
drastically
also
 the new Linking Words
were
 added.
The diagram clearly Indicates that 10 years ago the quantity of the indoors outnumbered the recent number of them. It is associated with the fact, that now Correct pronoun usage
ones were
instead
 of the offices and a storage room, there is a big cafeteria. It is Linking Words
also
 easily Linking Words
spoted
, that as Correct your spelling
spotted
the 
time passed, the parking area remained Correct article usage
apply
it's
 position Correct your spelling
in's
as well as
 Linking Words
hall
, kitchen and the entrance. 
Delving into more details, it can be noticed that the number of office rooms was drastically reduced from 4 rooms which were to the right of the hall to 1 room only, which is located before the hall. Correct article usage
the hall
Also
, the garden was abolished and Linking Words
instead
 of Linking Words
it
 there is Add a comma
it,
a
 indoor sports room. It seems that there was a positive impact on the Change the article
an
center
 workers' productivity, since now it is more Change the spelling
centre
comfort
 to work Replace the word
comfortable
that
 it used to be.Correct word choice
than