what is the difference in percentage of cumulative total return between expeditors international of washington inc . and the nasdaq industrial transportation ( nqusb2770t ) for the 5 year period ending 12/18?
the graph below compares expeditors international of washington , inc.'s cumulative 5-year total shareholder return on common stock with the cumulative total returns of the s&p 500 index and the nasdaq industrial transportation index ( nqusb2770t ) . the graph assumes that the value of the investment in our common stock and in each of the indexes ( including reinvestment of dividends ) was $ 100 on 12/31/2013 and tracks it through 12/31/2018 . total return assumes reinvestment of dividends in each of the indices indicated . comparison of 5-year cumulative total return among expeditors international of washington , inc. , the s&p 500 index and the nasdaq industrial transportation index. .

|  | 12/13 | 12/14 | 12/15 | 12/16 | 12/17 | 12/18 |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| Expeditors International of Washington, Inc. | $100.00 | $100.81 | $101.92 | $119.68 | $146.19 | $153.88 |
| Standard and Poor's 500 Index | 100.00 | 111.39 | 110.58 | 121.13 | 144.65 | 135.63 |
| NASDAQ Industrial Transportation (NQUSB2770T) | 100.00 | 121.41 | 93.55 | 120.89 | 154.19 | 140.25 |

the stock price performance included in this graph is not necessarily indicative of future stock price performance. .

a = 153.88 - 100
b = 140.25 - 100
c = a / 100
d = b / 100
e = c - d 
answer = e * 100