human
the graph below shows a five-year comparison of the cumulative shareholder return on the company's common stock with the cumulative total return of the s&p smallcap 600 index and the s&p 600 electrical equipment index, all of which are published indices. comparison of five-year cumulative total return from december 31, 2002 to december 31, 2007 assumes $100 invested with reinvestment of dividends period indexed returns.
|  | BasePeriod | INDEXED RETURNS |
| Company/Index | 12/31/02 | 12/31/03 | 12/31/04 | 12/31/05 | 12/31/06 | 12/31/07 |
| A O SMITH CORP | 100.00 | 132.23 | 115.36 | 138.20 | 150.26 | 142.72 |
| S&P SMALLCAP 600 INDEX | 100.00 | 138.79 | 170.22 | 183.30 | 211.01 | 210.39 |
| S&P 600 ELECTRICAL EQUIPMENT | 100.00 | 126.12 | 152.18 | 169.07 | 228.83 | 253.33 |
12/31/02 12/31/03 12/31/04 12/31/05 12/31/06 12/31/07 smith (a o) corp s&p smallcap 600 index s&p 600 electrical equipment.
Please answer the following question with expressions if necessary.
and what was the difference between the return (or the change representation) of the a o smith corp and the one of the s&p 600 electrical equipment?
assistant
subtract(142.72, const_100), divide(#0, const_100), subtract(253.33, const_100), divide(#2, const_100), subtract(#1, #3)