Here is the stock price history of Hightech and Low tech corporations.

Calculate the following.

	A	B	C
1		High tech corp stock price	Low tech corp stock price
2	31-dec-11	75.00	40.00
3	31-dec-12	86.25	45.20
4	31- dec-13	125.32	55.60
5	31-dec-14	91.64	48.37
6	31- dec-15	100.80	32.88
7	31-dec-16	145.93	61.64
8	31-dec-17	151.21	75.82
9	31-dec-18	196.57	97.02
10	31-dec-19	226.05	109.66
11	31-dec-20	89.00	122.99

a) The annual returns for each stock. (change part a to The annual return for each stock in year 2014 only)