Wildhorse Candle Supply makes candles. The sales mix $($as a percentage of total dollar sales$)$ of its three product lines is birthday

candles $30\%,$ standard tapered candles $60\%,$ and large scented candles $10\%.$ The contribution margin ratio of each candle type is

shown below.

$($a$)$

What is the weighted$-$average contribution margin ratio?

Weighted$-$average contribution margin ratio

$\%$

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