Confusion when Deriving a Percent and Reporting the Margin of Error

Hi everyone. I'm new to ACS data and am a bit confused. Below is a screenshot from page 64 of ACS General Handbook where the formula for determining MOE of the proportion and a worked example. 

However, it appears to me that the worked example swaps the MOE(X-hat) and MOE(Y-hat). Am I totally wrong or missing something? 

Any help totally appreciated. Thanks so much! 

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