Table:
Year Ended

January 3, 2020	December 28, 2018	December 29, 2017

Expected volatility	22.02%	25.37%	27.19%

Risk free rate of return	2.39%	2.35%	1.53%

Weighted average grant date stock price	$62.66	$65.00	$53.73

Answer the following question considering the table plus the background text, answer the question. You may include your reasoning, but be sure to finish with a JSON block exactly like {"answer": ["ANSWER"], "scale": "SCALE"} (leave "scale" empty if not applicable).

Context:
The Monte Carlo simulation assumptions used for the periods presented were as follows:
As of January 3, 2020, there was $12 million of unrecognized compensation cost, net of estimated forfeitures, which is expected to be recognized over a weighted average period of 1.7 years. The fair value of performance-based stock awards that vested in fiscal 2019, 2018 and 2017 was $9 million, $13 million, and $4 million, respectively.

Question: What was the change in Weighted average grant date stock price from 2017 to 2018?

65 - 53.73, therefore {"answer": "11.27", "scale": ""}