Let's split the bill!

This app is a simple and easy-to-use calculator app for splitting the bill.

# What can this app do?
1. Calculate the split evenly among everyone's amounts
2. Calculate the split by specifying the ratio
3. Calculate the split by specifying the discount amount

# Screen Descriptions
[Title screen]
There are three buttons: "Mode Selection", "Use App" and "Currency selection.
Tap each button to move to [Mode selection screen], [How to use app screen] and [Currency selection screen].

# Mode selection screen
There are three buttons: "Equal mode", "Ratio mode" and "Discount mode".
Tap each button to move to [Equal mode screen], [Ratio mode screen] and [Discount mode screen].

# Equal mode screen
Enter the amount and number of people to calculate the amount per person. Use this mode when you want to split the same amount among all members.

# Ratio mode screen
Enter the amount, ratio, and number of people to calculate the amount per person for each ratio. Use this mode when you want to differentiate between groups by age, gender, etc.

# Discount mode screen
Enter the amount, the number of people in the group, the discount amount, and the number of people to whom the discount should be applied to calculate the amount per person. Use this mode when you want to specify and differentiate the discount amount between groups by age, gender, etc.

In all modes, you can set how to display fraction and the minimum unit.

# How to use the app screen
This screen explains how to use the app. If you do not understand how to use the app, please refer to this screen.

# Currency selection screen
You can select the currency you wish to use. You can select "Dollar/Cent", "Euro/Cent", "Pound/Penny", and "Yen".
You can also register a currency and an auxiliary currency. The auxiliary currency is 1/100 of the currency.