const char *, int *));
uerr_t retrieve_from_file PARAMS ((const char *, int, int *));
-char *rate PARAMS ((long, long, int));
+char *retr_rate PARAMS ((long, long, int));
+double calc_rate PARAMS ((long, long, int *));
void printwhat PARAMS ((int, int));
void downloaded_increase PARAMS ((unsigned long));