After being forced to take a pay-cut from $55,000 per year to $47,000 per year, Harolds door-dash

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Question:

After being forced to take a pay-cut from $55,000 per year to $47,000 per year, Harold’s door-dash orders went from 104 per year to 77 per year, while his trips to the movies went from 52 to 44, and his shampoo purchases went from 26 to 24. Calculate Harold’s income elasticity of demand for door-dash, movies, and shampoo. What are your conclusions about these items based on these calculations