How can I get each x axis point to be a percentage of the total?

I'm having trouble getting units as a percentage of a total. I have a Y coaxis "Views" for example, and an X axis with Dates, and each date has a specific amount of views.

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I want each date to show as a percentage of the total views within the date range on my X axis. If anyone could help that would be great.

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Thanks!!

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