Compute 
along the curve 
shown in the following figure. 
Definitions:
Gross Profit
The profit a company makes after deducting the costs associated with making and selling its products, or the costs associated with providing its services.
Net Sales
The revenue a company earns from sales after subtracting returns, allowances for damaged or missing products, and discounts.
Allowance for Doubtful Accounts
A contra-asset account used to estimate the portion of accounts receivable that is expected to be uncollectible.
Percentage of Credit Sales Method
An accounting method used to estimate bad debt expense by applying a fixed percentage to the total credit sales of a period.
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