Check out example codes for "c# round number". It will help you in understanding the concepts better.
Code Example 1
double number = 1.5362
int rounded = Math.Round(number)
//rounds number to 2
double rounded_2 = Math.Round(number, 2)
//rounds number to 1.54
Code Example 2
// Use Math.Ceiling to round up
Math.Ceiling(0.5); // 1
// Use Math.Round to just round
Math.Round(0.5, MidpointRounding.AwayFromZero); // 1
// And Math.Floor to round down
Math.Floor(0.5); // 0
Code Example 3
double number = 1.5362
int ceiling = Math.Ceiling(number)
//rounds number to 2
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