Key features include:
Multiple display of calculate history.
The calculation results can be modified in the tap.
You can copy, tap the text box in the input.
if you long tap the rate change button, to display the setting screen,
Rate change, rounding (rounded down, rounded up, rounded off) can be selected.

※ can not be the calculation of the four arithmetic operations, and the like.
It is a simple app that specializes in rate conversion.

Recommended for:
At shopping, and 8% becomes 10% How much?
Including tax 380 or no tax 350, Which is cheaper?
no tax 1,000, tax 8% or 10%, How much?
if consumption tax increases in the retail store.
price display, price change, convenient to the price tag change work.
Excel to launch every time and eliminates the need to input the formula.
Tax invoices and receipts, tax, in the calculation of the new tax rate.
The business work efficiency.
How much? 30% OFF Sale.
To scale 23 to 65, what percentage?

If there is a bug, please report to here.
[email protected]

We will continue to add from the demand often feature in the comments. If you have any requests, please comment.