How to Read and Compare string in a file then get the number/s beside it in C

This is the Algorithm:

1. Open the file.


2. Read a string from the file.


3. Compare the string.
   
   
   
   • If the string matches, get the number/s after '=', then exit the loop.
   
   
   
   


4. Check the end of the file.
   
   
   
   • If it's not yet the end of the file, go back to step 2.
   
   
   • If the end of the file is met exit the loop, and go to step 5.
   
   
   
   


5. The string is not in the file.

This is the program i made:

FILE *fp = fopen("Converter.txt", "r");

while( fgets(line, sizeof(line), fp) != NULL ){
    if(strcmp(line,a)){
        printf("There is such file");
        sscanf(line,"%*[^=]=%f", &num);
        printf("\n\n%.2f",num);
    }else{
        printf("NULL\n");
        continue;
    }break;
}

The problem is it only scan the first line and it doesn't scan the number beside the string that it compares.

Thanks.