# Tag Math

I made a small post about Inexact rounding up or down with decimal digits. But it is also possible to run into the same bug when rounding floating point numbers to the next number with restricted decimal digits. A really common example is the price calculation. You have the price 1.99 for example and the tax is maybe 19%. The resulting price with tax would be 2.3681. So you will need to round the price with two decimal digits to 2.37.