Coca-Cola recently developed and implemented new Freestyle machines. These beverage machines replace the traditional dispensers in restaurants and allow customers unlimited combinations of drinks. Suppose that the price of Coca-Cola stock in the next year will depend on consumer response to these new machines. Lets assume that the current price of Coca-Cola is $60.00 per share. Below are projected Coca-Cola share values based on how the project responds:

OUTCOME	PROBABILITY	SHARE PRICE
Average Response	0.30	$56.00
Positive Response	0.70	$66.00

What is the standard deviation for Coca-Cola returns next year?

Answer format: Percentage Round to: 2 decimal places (Example: 9.24%, % sign required. Will accept decimal format rounded to 4 decimal places (ex: 0.0924))