D2L Lo.. Percentage of Credit Sales Method Ruby Red manufactures, markets, and distributes citrus flavored soft drinks across the globe. Ruby Red hired a collection agency in 2018 to increase collection rates from customers. As a result, Ruby estimates that only 2% of its 2019 aedit sales will be written off, compared to the 4% of 2018's credit sales that were estimated to be uncollectible. $1,570,000. At December 31, 2019, Ruby Red has a $12,800 credit balance in its allowance for doubtful accounts and credit sales of Required: Use the percentage of credit sales method to calculate the bad debt expense. 3-31 PM 2/23/2019