Tipping can sometimes be confusing because the expected amount depends on the service, location, and quality of the experience. In restaurants, people often calculate a percentage of the total bill, while other services such as delivery, salons, or taxis may follow slightly different tipping habits.
Instead of calculating the percentage manually, a Tip calculator (https://mycalculator.us/calculator/tip) can quickly show the tip amount and final total based on the percentage you choose. It can also be useful when splitting a bill between several people.
The best approach is to use local tipping customs as a guide and adjust the amount based on the quality of service.