How to convert a whole number into decimal..For example 70 to .70
because there are some price in my system that needed to be calculated by grams
for example $5 per grams...
I am saving the price in my database as an integer..
Thank's for dropping by
I didn't use vb for a long time, but, I guess, simple float division will work
Dim number As Integer
Dim result As Decimal
number = 70
result = number / 100.0
As you are storing cents and you want to display dollars divide the cents from the database by 100 and show that number in the user interface.
If the user enters an amount of dollars (and cents) multiply by 100 before storing in the database.
Related
I've been learning TSQL and need some help with a conversion CPU MIPS into PERCENTAGE.
I've built my code to get some data that I'm expecting. In addition to this, I want to add a column to my code which is to get the CPU%. I have a column that gives me TOTALCPU MIPS and want to use this in the code but in the form of percentage. Example, I have these values in my TOTAL CPU Column:
1623453.66897
0
0
2148441.01573933
3048946.946314
I want to convert these values into percentage and use them. I couldn't find much info on the internet.
Appreciate your response.
I assume that you have 5 numeric quantities (2 of them being zero) and you want to find the percentage that corresponds to each of them out of the addition of the five quantities. Is it so?
To find the percentage of a particular number in the addition you multiply the number by 100 and divide by the addition, the result is the percentage that that number is in relation with the addition.
The sum: 6820841.631023
The percentage of the first number (of MIPS):
1623453.668970 * 100 / 6820841.631023 = 23.80136876 =>
23.80136876% is the percentage of CPU used by the first program.
To give the answer some SQL looking, refering to Mips_Table as the view/table that contains the MIPs data:
select mips, mips/totMips*100 Pct_CPU
from Mips_Table,
(select sum(mips) TotMips from Mips_Table) k
I have a product table where I save the price and the amount of profit.
I want to display the amount of time displayed differently
for example :
price : 8.08
profit : 8
Presentable : 8.08 + (8.08 * 8 / 100) = 8.7264
Now I want the answer to be two decimal places and rounded up.
And the answer should be as follows:
Presentable : 8.08 + (8.08 * 8 / 100) = 8.73
The "C" currency format specifier should do the trick for you.
Dim amount As Decimal = 123.456
System.Console.WriteLine(amount.ToString("C", System.Globalization.CultureInfo.CurrentCulture))
' Prints : $123.46
More info here: https://learn.microsoft.com/en-us/dotnet/standard/base-types/standard-numeric-format-strings#CFormatString
There is a also a Round method, where you can specify to how many decimal places you would like to round the number. So in your case of rounding to 2 decimal places you could make a call like:
System.Math.Round(amount, 2, System.MidPointRounding.AwayFromZero)
How to handle decimal numbers in solidity?
If you want to find the percentage of some amount and do some calculation on that number, how to do that?
Suppose I perform : 15 % of 45 and need to divide that value with 7 how to get the answer.
Please help. I have done research, but getting answer like it is not possible to do that calculation. Please help.
You have a few options. To just multiply by a percentage (but truncate to an integer result), 45 * 15 / 100 = 6 works well. (45 * 15%)
If you want to keep some more digits around, you can just scale everything up by, e.g., some exponent of 10. 4500 * 15 / 100 = 675 (i.e. 6.75 * 100).
im trying to learn how to made stuff with currency.
For example:
I divide 10.000$ by 12 Months, rounding with 2 decimals i have 833,33 $.
If i multiply 833,33 $ * 12 i got 9999,96 $, so there is 0.04 of possible loss.
Rounding the 9999.96 with 2 decimals of presition i got 10.000 $ but that's what i don't want since 0.04 is a loss.
Im using SQL Compact 4.0 as database, the price_month table is decimal(18,2)
Here is my code:
Dim price as Decimal = 10000
Dim pricemonth as Decimal = Math.round((price/12),2) ' 833.33
Console.Writeline(pricemonth*12) ' 9999.96
Console.Writeline(Math.round((pricemonth*12),2)) ' 10000
Any advice how to increase accuracy with currency? Thanks and have a nice day!
Don't round your calculation. Leave the original numbers untouched but when you display the answer round it so that it looks nice.
I am writing a custom totaling method for a grid view. I am totaling fairly large numbers so I'd like to use a decimal to get the total. The problem is I need to control the maximum length of the total number. To solve this problem I started using float but it doesn't seem to support large enough numbers, I get this in the totals column(1.551538E+07). So is there some formating string I can use in .ToString() to guarentee that I never get more then X characters in the total field? Keep in mind I'm totaling integers and decimals.
If you're fine with all numbers displaying in scientific notation, you could go with "E[numberOfDecimalPlaces]" as your format string.
For example, if you want to cap your strings at, say, 12 characters, then, accounting for the one character for the decimal point and five characters needed to display the exponential part, you could do:
Function FormatDecimal(ByVal value As Decimal) As String
If value >= 0D Then
Return value.ToString("E5")
Else
' negative sign eats up another character '
Return value.ToString("E4")
End If
End Function
Here's a simple demo of this function:
Dim d(5) As Decimal
d(0) = 1.203D
d(1) = 0D
d(2) = 1231234789.432412341239873D
d(3) = 33.3218403820498320498320498234D
d(4) = -0.314453908342094D
d(5) = 000032131231285432940D
For Each value As Decimal in d
Console.WriteLine(FormatDecimal(value))
Next
Output:
1.20300E+000
0.00000E+000
1.23123E+009
3.33218E+001
-3.1445E-001
3.21312E+016
You could use Decimal.Round, but I don't understand the exact question, it sounds like you're saying that if the total adds up to 12345.67, you might only want to show 4 digits and would then show 2345 or do you just mean that you want to remove the decimals?