For a), this is what I did:

(137804 - 130350)/130350

= 7454/130350

(7454/130350) x 100

=5.718

5.718/4

=1.429

=1.4%

This method worked for this question, but it didn't work for another question I tried. This is the other question for which my method above didn't work for:

**The profit made by a supermarket chain in 2004 is £700 million. The managing director wishes to increase this by 2% per year for the next 10 years. In fact, the profit increases annually in geometric progression to £765 million in 2009.**

a) Find the annual percentage increase in profit from 2004 to 2009, giving the answer correct to 2.s.f.
For this question, the correct answer is 1.8%, but I got 1.9%, hence why I think my method above isn't very reliable, and why I would like it if someone could give me the proper method