Divide an integer by 100 and get value till two decimal points?

Question

I have String amount in a TextBox, which I want to divide by 100.

The value should round off to two decimal places. I tried and I am not getting a proper value.

Here is what I tried:

6766/100 = 67.66
47/100 = .47
98/100 = .98

It's doing an `int` calculation because both operands are ints. Try changing one of the numbers to a double by adding ".0", e.g. `6766/100.0` — Matthew Watson, Mar 25 '14 at 10:03
http://stackoverflow.com/questions/22521867/float-doesnt-register-under-1/22521940#22521940 — heq, Mar 25 '14 at 10:04
possible duplicate of [What's wrong with this division?](http://stackoverflow.com/questions/704702/whats-wrong-with-this-division) — Mark Rotteveel, Mar 25 '14 at 10:42
possible duplicate of [How do you round a number to two decimal places in C#?](http://stackoverflow.com/questions/257005/how-do-you-round-a-number-to-two-decimal-places-in-c) — jww, Mar 25 '14 at 10:55

Ehsan · Accepted Answer · 2014-03-25T10:08:45.700

5

Use Math.Round. This example should get you going

string txtText = "78907";

double inputValue;

if (double.TryParse(txtText, out inputValue))
   double result = Math.Round(inputValue / 100, 2);

Output: 789.07

edited Mar 25 '14 at 10:08

answered Mar 25 '14 at 10:05

Ehsan

score 4 · Answer 2 · answered Mar 25 '14 at 10:05

4

Use Math.Round, but one of both need to be a decimal type to avoid integer division:

double result = Math.Round(6766d / 100, 2);

answered Mar 25 '14 at 10:05

Tim Schmelter

score 3 · Answer 3 · answered Mar 25 '14 at 10:04

3

Use Math.Round. It has a parameter called precision.

Example:

Math.Round(1.23456, 2) -> 1.23

answered Mar 25 '14 at 10:04

score 0 · Answer 4 · answered Mar 25 '14 at 10:28

0

Math.round will do.

Math.Round(1.23456, 2);

It will round input at 2 decimals

answered Mar 25 '14 at 10:28

Roboneter

4 Answers4