he results of a survey on personal financial planning trends indicated $51\%$ of the clients had concerns about outliving their money. The top reasons for these concerns and the percentage of respondents who cited the reason were as follows.

Concerns for RetirementThe chart has $6$ horizontal bars. Each bar is associated with a label and a value as listed below.

Health$-$care Costs: $76\%$

Stock Market fluctuations: $54\%$

Unexpected Costs: $51\%$

Lifestyle Changes: $43\%$

Possibility of Being a Financial Burden: $21\%$

Desire to Leave an Inheritance: $20\%$

$($a$)$

What type of chart is this?

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$($b$)$

Only $51\%$ of the survey respondents had financial concerns about retirement $($outliving their money$).$ What percentage of the total people surveyed had retirement health$-$care cost concerns?

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