A Reddit post has revealed that Texas Roadhouse has employed a fraudulent method of calculating a suggested 15% tip on a total of $80.68, which, according to the customer, should have resulted in $12.10. However, receipts show that the total was already a post-tax amount and the excess $1.35 tip came by way of a coupon the user had used. The customer questioned the legitimacy of this claim, asking how they were even receiving $13.45 as the 15% tipped out to $13., which, if algebraically, should be $12.,10. The use of suggested tip amounts on a digital screen, like the interface employed at Texas Roadhouses, has been a common source of tension with consumers. While not widely accepted in the US, tipping is not customary in many regions, many Americans increasingly feel discouraged by the practice.