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Asked: 2026-05-27T21:35:58+00:00

I’m building an ecommerce site integrated with paypal. We take multiple currencies, so I

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I’m building an ecommerce site integrated with paypal.

We take multiple currencies, so I want to make sure that (for accounting reasons) i’m correctly performing any math for currency conversion.

After multiplying the currency conversion * the original currency, I always end up with lots of trailing numbers after the decimal point.

Is there a standard way to do this? Should I truncate or round? Do I need to round multiple times in case rounding the 1/1000 decimal will affect rounding the 1/100 decimal?

Should I be doing something like:

Math.Round(Math.Round(x, 3), 2)

I’ve been having trouble finding good information about how this is done (hopefully US and Europe are the same).

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1 Answer

  1. Editorial Team

    You should use Math.Round(x, 2, MidpointRounding.AwayFromZero)

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