human
stock total return performance the following graph compares our total return to stockholders with the returns of the standard & poor 2019s composite 500 index (201cs&p 500 201d) and the dow jones us select health care providers index (201cpeer group 201d) for the five years ended december 31, 2018. the graph assumes an investment of $100 in each of our common stock, the s&p 500, and the peer group on december 31, 2013, and that dividends were reinvested when paid. .
|  | 12/31/2013 | 12/31/2014 | 12/31/2015 | 12/31/2016 | 12/31/2017 | 12/31/2018 |
| --------- | --------- | --------- | --------- | --------- | --------- | --------- |
| HUM | $100 | $140 | $176 | $202 | $247 | $287 |
| S&P 500 | $100 | $114 | $115 | $129 | $157 | $150 |
| Peer Group | $100 | $128 | $135 | $137 | $173 | $191 |
the stock price performance included in this graph is not necessarily indicative of future stock price performance. .
Please answer the following questions with expressions if necessary.
what was the highest change in the performance price for the first year?
assistant
subtract(140, 100)
human
and what was the lowest?
assistant
subtract(114, 100)