A tattoo depicting a chart or design enabling the wearer to quickly calculate gratuity amounts is a relatively recent phenomenon. This can range from a simple, easily memorized table to a more complex sliding scale design incorporating percentages and dollar amounts. One example might be a circular design with rotating sections aligned to calculate tips based on the pre-tax bill.
Such a tattoo serves a practical purpose for individuals working in service industries where tips constitute a significant portion of their income. It provides a discreet and readily available reference tool, eliminating the need for phone-based calculators or mental mathematics, potentially streamlining transactions and improving customer service flow. While the historical context is limited due to the novelty of the concept, it reflects a growing trend of incorporating functional designs into body art.