formula output is always zero point zero

hi, i'm using progress bar , loop, inside is:

double prog = 0;
for (int = 0; <= count - 1; i++)  {     prog = ((i + 1) / count) * 100;     backgroundworker.reportprogress(prog);  }

but problem is, progressbar not updating, when put breakpoint on prog variable, show 0.0 output, why this.

i'm puzzled, please help. thanks!

always remember "thanks", clicking "mark answer" , "vote helpful" if post answers question.

hi, nevermind, solved it, declare 1 of digits double. :)

prog = ((i + 1) / (double)count) * 100;

well can explain me why work? :)

always remember "thanks", clicking "mark answer" , "vote helpful" if post answers question.

Visual Studio Languages , .NET Framework > Visual C#

Gain