[Error]:expected '(' before 'hours'

enter image description here

#include<stdio.h>

 void calculateCharged(int c)
 {

 int a;
 int hours = scanf("%d",&a);
 int totalFee=25;
}

int main( void )
{

    int i;
    int b;
    printf( "Please Enter Number of Cars ");
    scanf( "%d",&i);
    for(b=0;b<i;b++)
    {
        calculateCharged(hours)
        if (hours)<8
        totalFee+=hours*0,5
        else if hours < 24
        int additionalHours = hours - 7
        totalFee+=additionalHours*5
        totalFee+=hours*0,5
        else
        int days=hours/24
        int extraHours=hours%24
        totalFee+=days*50
        totalFee+=days*24*0,5
        totalFee+=extraHours*5
        totalFee+=extraHours*0,5


    }
}

Hi everyone.I am trying to learn programming.It is a simple question but I dont solve. Why am I getting an error? What's wrong? How can I solve this problem? Please help me.