How Can I Round Numbers to Two Decimal Places in C# Using Math.Round?

Round numbers to two decimal places using Math.Round in C#

C# provides the Math.Round function for rounding a number to a specified number of decimal places. To round a number to two decimal places, simply pass in the number and the value 2 as the second argument.

Example:

<code class="language-csharp">decimal a = 1.994444M;

Math.Round(a, 2); // 返回 1.99

decimal b = 1.995555M;

Math.Round(b, 2); // 返回 2.00</code>

Banker’s Rounding Method

You may also want to consider using Banker's rounding (also known as rounding five to even), which ensures that intermediate values ​​are rounded to the nearest even value. You can achieve this by using the MidpointRounding.ToEven value as the third parameter of the Math.Round function.

Example:

<code class="language-csharp">Math.Round(a, 2, MidpointRounding.ToEven);</code>

More resources

For more information about different rounding behaviors in C#, please visit: https://www.php.cn/link/b4e996f75bdf4c28209feba4693ff228

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