The RC and More Superstore decides to track customer complaints as part of their ongoing customer satisfaction improvement program. After collecting data for two months, their check sheet appears as follows: 
If they construct a Pareto chart, what is the percentage of complaints represented by the problem "Literature not included in box"?
Definitions:
Markup
A pricing strategy where a seller adds to the cost of the goods to determine the selling price, aimed at ensuring a profit margin above cost.
Selling Prices
The actual amount that a customer pays for a product or service, which can include discounts, promotions, and taxes.
Markup
The amount added to the cost price of goods to cover overhead and profit, determining the selling price of the product.
Selling Price
The cost at which an item is offered to buyers in the marketplace.
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