SOLUTION: A survey of 400 people found that 66 were left-handed. What percent of those surveyed were left-handed?

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Question 67884: A survey of 400 people found that 66 were left-handed. What percent of those surveyed were left-handed?
Answer by tutorcecilia(2152) About Me  (Show Source):
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Part/Whole=Percent/100 [formula for basic percentage problems]
66/400=x%/100 [plug-in the values and solve]
.165=x%/100 [solve for x]
(.165)(100=(x%/100)(100)
16.5%=x%
.
checking
(400)(16.5%)
=(400)(.165) [change the percent to a decimal]
=66