Workout Wednesday: How many customers make up XX% of sales?

On yesterday's Makeover Monday Viz Review, guest host Ann Jackson gave me a bit of grief for not participating in too many Workout Wednesday's this year. I've taken on her challenge and this week I've complete week 33. This week was a community challenge from Donna Coles, who has completed every WW since it started in January 2017.

Find all of the details of the challenge here. The only requirement I chose to ignore was the dashboard size. I created it 700x700 instead of 800x800 because it fit on my screen nicely.

Some hints for this challenge:

• You'll need to know your table calcs.
• This video will be helpful in creating the Pareto chart.
• You'll need extra calculations for the tooltip and the lines and the dot.