Question

I need to create a function which rounds decimal numbers like this:

Round(“$32.95”, 0) to -> $33
Round(“85.86%”, 1) to -> 86.9%

where first parameter is string and second parameter is number of decimal points required

I am using Math.round but it is converting to 85.9

Answer 1

An algorithm you can use (I don’t know C#):

• get 10-to-the-power(number-of-significant-digits) (=P10)
• multiply your decimal-number by P10
• add: 0.5
• divide the integer-portion of this sum by (P10) – the answer will be your rounded number