Answer: None of the above 

Explanation:
country XX’s outward investment flow
=> During January 2011 = 3075
=> During May 2011 = 3701
=> Required growth rate = 3701 – 3075 / 3075 x 100%
=> 62600 / 3075 % = 20.36%

Answer: April, approximately negative growth of 49% 

Explanation:
Negative growth in March for Singapore
=> 1211 – 741 / 1211 x 100%
=> 39%
=> Negative growth in April for Singapore
=> 741 – 378 / 741 x 100%
=> 49%
=> Thus the country XX’s Outward Investment to Singapore dropped most in April and of approximately 49%

Answer: 7.24%

Explanation:
Required share of country XX’s outward investment together
=> In USA and UK in Feb 2011
=> 116 + 117 / 3221 x 100%
=> 233 / 3221 x 100%
=> 7.24%

Answer: February, 45%

Explanation:
from the given diagram, highest investment in Singapore and UAE
=> Is in the month of February which is equal to 1200 + 227 =
=> 1438 US $ million
=> Required percentage = 1438 / 3222 x 100%
=> 45%

Answer: Singapore

Explanation:
Between February and April, decline in the outward investment
=> From XX to Singapore
=> 1211 – 378 / 1211 x 100%
=> 68.79%
=> UK = 117 – 44 / 117 x 100% = 62.39%
=> UAE = 227 – 157 / 227 x 100% = 30.84%
=> Others = 1551 – 686 / 1551 x 100% = 55.77%
=> Thus, Singapore has the highest decline.
=> We will check the statements one by one