how to round of invoice total round of decimal invoice total 123.44 need show round

[asmgssl]

invoice total 123.44 so grand total 123 and round off colom -44
also invoice total 123.55 round 124 and roundup +45

[codegazer]

Cint(variable) will round the value
(cint(variable) - variable) will show the amount of rounding

[83rock]

VB6 CInt and CLng us the bankers rounding for .5, and rounds to the nearest even number.
CInt(123.5) and CInt(124.5) both produce the same result, with different rounding
CInt(123.5) :and CInt(124.5) both produce the same result, with

[83rock]

VB6 CInt and CLng both use the bankers rounding for .5, rounding to the nearest even number.
Hence CInt(123.5) and CINT(124.5) will produce the same result (with different round Up/Down):
CInt(123.5) = 124 Round Up 0.5
CINT(124.5) = 124 Round Off -0.5
VB6 Round() also uses bankers rounding, but the Round() function is not implemented in a consistent fashion among different Microsoft products
Ref: MSDN Q196652 HOWTO: Implement Custom Rounding Procedures
Which also provides functions for different rounding algorithms.