C programming

why isn't this program working right

$/$ SuperCalcV$1.$c by Sarah Place $9/22/24$

#include

int main$($void$)$

$\{$

printf$("$Jayhawk Supercomputer Usage Calculator by Sarah Place

$")$;

int hoursUsed$=0,$ minutesUsed$=0,$ secondsUsed$=0$;

printf$("$Enter hours used as a whole number $(0-100)")$;

scanf$("\%$d$",$&hoursUsed$)$;

printf$("$

Enter minutes used as a whole number $(0-59)")$;

scanf$("\%$d$",$&minutesUsed$)$;

printf$("$

Enter seconds used as a whole number $(0-59)")$;

scanf$("\%$d$",$&secondsUsed$)$;

int totalSeconds $=$ hoursUsed $*3600+$ minutesUsed $*60+$ secondsUsed;

printf$("$

Total Seconds of Usage $=\%$d

$",$totalSeconds$)$;

float totalHours $=($float$)$hoursUsed $+($float$)$minutesUsed$/60+($float$)$secondsUsed$/3600$;

printf$("$

Total Hours of Usage $=\%3\mathrm{.}4$f

$",$totalHours$)$;

float totalDays $=($float$)$hoursUsed$/24+($float$)$minutesUsed$/1440+($float$)$secondsUsed$/86400$;

printf$("$

Total Days of Usage $=\%3\mathrm{.}4$f

$",$totalDays$)$;

float rate $=0\mathrm{.}0$f;

if $($totalSeconds $<=3000)\{$

printf$("$

Rate Per Second $=0\mathrm{.}67$f$")$;

$\}$

else if $($totalSeconds $<=6000)\{$

printf$("$

Rate Per Second $=0\mathrm{.}57$f$")$;

$\}$

else if $($totalSeconds $<=9000)\{$

printf$("$

Rate Per Second $=0\mathrm{.}47$f$")$;

$\}$

else if $($totalSeconds $<=36000)\{$

printf$("$

Rate Per Second $=0\mathrm{.}37$f$")$;

$\}$

else$\{$

printf$("$

Rate Per Second $=0\mathrm{.}27$f$")$;

$\}$

printf$("$

Thanks for Using Jayhawk Supercomputer!"$)$;

return $0$;

$\}$