What is a service charge?
A service charge is a fee collected to pay for services related to the primary product or service being purchased. The charge is usually added at the time of the transaction. Many industries collect service charges, including restaurants, banking, and travel and tourism. When collected, these charges may cover services rendered to the consumer, or they may cover administrative or processing costs.
What is the definition of "hospitality industry"?
The hospitality industry is a broad category of fields within the service industry that includes lodging, food and drinks service, event planning, theme parks, transportation, cruise line, traveling and additional fields within the tourism industry.
What is a calculator?
According to Wikipedia: A calculator is a machine that allows people to do math operations more efficiently. For example, many calculators will add, subtract, multiply, and divide. Some also calculate square roots, and more complex calculators can help with calculus and draw function graphs. Calculators are ubiquitous. Smartphones and other computers can also serve as a calculator.
Some calculators, such as the abacus, will work without requiring batteries. Others, like the electronic calculator, need batteries. There are two main types of electronic calculators: simple calculators—which can only add, subtract, multiply and divide, and sometimes take square roots—and scientific calculators—which can do many other things, such as calculate factorials and trigonometry functions.