Investment Calculator

I invested			Shares Dollars (USD)
on	Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec	01020304050607080910111213141516171819202122232425262728293031	201220112010200920082007
Reinvest Dividends:

Calculate Current Value and Shares Since: October 15, 2007

Investment Date:	Original Shares:	Original Value:	Current Shares:	Current Value:	Percent Return:
10/15/07	100	$ 1,525.00	104	$ 1,394.29	-8.57%

Adjustments

Date	Reason	Factor	Shares	Price	Value	%
10/15/07	Initial Investment		100	15.25	$1,525.00	0.00%
01/23/08	Dividend	0.040	100	15.22	$1,526.00	0.07%
04/14/08	Dividend	0.040	100	14.98	$1,505.95	(1.25%)
07/14/08	Dividend	0.040	100	15.13	$1,525.05	0.00%
10/14/08	Dividend	0.040	101	16.33	$1,650.04	8.20%
01/14/09	Dividend	0.040	101	11.67	$1,183.22	(22.41%)
04/14/09	Dividend	0.040	101	11.44	$1,163.95	(23.68%)
07/14/09	Dividend	0.040	102	15.60	$1,591.28	4.35%
10/15/09	Dividend	0.040	102	17.80	$1,819.77	19.33%
01/14/10	Dividend	0.040	102	23.81	$2,438.28	59.89%
04/14/10	Dividend	0.040	102	17.00	$1,745.00	14.43%
07/15/10	Dividend	0.040	102	19.06	$1,960.56	28.56%
10/15/10	Dividend	0.040	103	17.64	$1,818.61	19.25%
01/14/11	Dividend	0.040	103	18.01	$1,860.87	22.02%
04/13/11	Dividend	0.040	103	17.53	$1,815.41	19.04%
07/13/11	Dividend	0.040	103	20.35	$2,111.59	38.47%
10/14/11	Dividend	0.040	104	14.96	$1,556.46	2.06%
01/19/12	Dividend	0.040	104	15.29	$1,594.95	4.59%
04/12/12	Dividend	0.040	104	14.65	$1,532.36	0.48%
05/17/12	Current Investment		104	13.33	$1,394.29	(8.57%)

The Investment Calculator page and related information is provided by Mergent, a third party service. Zep Inc. does not maintain this page and is not responsible for the accuracy, completeness or timeliness of the information. The results are for illustrative purposes only and should not be relied on for investment purposes. The timing and price of dividend reinvestments, taxes, commissions and other factors may affect the values shown. Please note that historical investment performance is not intended to indicate future performance.