By default, every value with a fractional part is treated as a Double value because this type can accommodate fractional values with the greatest possible accuracy. Assigning a Double value to a Decimal variable will produce an error if the Strict option is on, so you must specify explicitly that the two values should be converted to the Decimal type. The D character at the end of the value is called a type character. Following Table lists all of the type characters that are available in Visual Basic.

Type Character	Description	Example
C	Converts value to a Char type	Dim ch As String = "A"c
D or @	Converts value to a Decimal type	Dim price As Decimal = 12.99D
R or #	Converts value to a Double type	Dim pi As Double = 3.14R
I or %	Converts value to an Integer type	Dim count As Integer = 99I
L or &	Converts value to a Long type	Dim distance As Long = 1999L
S	Converts value to a Short type	Dim age As Short = 1S
F or !	Converts value to a Single type	Dim velocity As Single = 74.99F