# Percentage Calculation [Answered]RSS

## 2 replies

Last post Oct 08, 2018 11:50 AM by jonnygareth30

• jonnygareth3...

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### Percentage Calculation

Oct 05, 2018 01:28 PM|jonnygareth30|LINK

Hi,

I have the below code for a calculation to be displayed in a label. The issue is with the WorkDurationHrsTextBoxMonthly.Text not outputting the value to conhrs. I think this would be due to the value of the textbox being a TimeSpan but I am not sure how best to parse the value so I can display the result in a label.

WorkDurationHrsTextBoxMonthly.Text = 6:54

double conhrs, HrsPerMon;
double.TryParse(WorkDurationHrsTextBoxMonthly.Text, out conhrs); //Does not pass the value from WorkDurationHrsTextBoxMonthly.Text to conhrs
double.TryParse(WorkingHoursPerYearLabelMonthly.Text, out HrsPerMon);
double Perc = 100.00 * conhrs / HrsPerMon;
ConHrsUtilLabelMonthly.Text = Perc.ToString("c").Remove(0, 1); //Calculates the total and displays in label

• Mikesdotnett...

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### Re: Percentage Calculation

Oct 05, 2018 01:59 PM|Mikesdotnetting|LINK

Don't know anything about your application, but it looks like you are trying to calculate the percentage of time worked against the allocated hours for a particular month? If so, I'd be tempted to do the calculation in minutes:

`var minsWorked = TimeSpan.Parse(``WorkDurationHrsTextBoxMonthly.Text).TotalMinutes;`
`var allowance = Double.Parse(WorkingHoursPerYearLabelMonthly.Text); // Assume total hours e.g. 160 rather than another timespan`
`var percent = 100 * minsWorked / (allowance * 60);`

• jonnygareth3...

Member

72 Points

251 Posts

### Re: Percentage Calculation

Oct 08, 2018 11:50 AM|jonnygareth30|LINK

Thank you very much Mikesdotnett, worked perfectly!