Tax Rate Calculator provides users with convenient calculation functions
Instructions for using Tax rate calculator:
1. Tax rate: Enter the amount including tax and the amount not including tax to calculate the tax rate and tax amount.
2. Amount excluding tax: Enter the amount including tax and the tax rate (tax point) to calculate the amount excluding tax and tax amount.
3. Amount including tax: Enter the amount excluding tax and the tax rate (tax point) to calculate the amount including tax and tax amount.