Input the total bill amount.
Selects or inputs the desired tip percentage.
Input the number of people splitting the bill.
The calculator then:
Calculates the tip amount: Bill Total * (Tip Percentage / 100)
Calculate the total bill with tip: Bill Total + Tip Amount
Calculates the amount per person: Total Bill (with tip) / Number of People
Results are dynamically updated as inputs change or upon clicking "Calculate."