Calculations are not coming in, what am I doing wrong - c

Question

I am new to C programming and cannot seem to get the calculations for the code below to come in outside of the one calculation when I input 1 for distance which then calculates to $1.80. I have an if else that should recognize that as not meeting the minimum and therefore calculate it as $5.00, but it just calculates $1.80. Can you please point me in the right direction as to what I am missing for the needed calculations?
#include <stdio.h>
#include <stdlib.h>
#define MINFARE '$5.00'
int main() {
//Declare all of the variables types and their data types and values as applicable.
float distance, totalFare;
int numberOfPassengers, airport;
//Prompt passenger to enter the total distance (measured to 1/10 of a mile) with a keyboard
printf("Please enter the total distance, ");
printf("enter it measured to 1/10 mile, e.g. 25.5: ");
scanf("%f", &distance);
//Prompt the user to enter the number of passengers
printf("\nPlease enter the number of passengers: ");
scanf("%d", &numberOfPassengers);
printf("\nAre you going or coming from the Airport? ");
printf("Enter (1) for <yes> and (2) for <no>: ");
scanf("%d", &airport);
if(airport == 1) {
totalFare = (1.80 * distance) + 2.00;
}
else {
totalFare = 1.80 * distance;
}
/*Calculate the fare amount with the number of passengers, such that, the initial rider is charge the fare only,
the first additional passenger charge is the fare plus $1.00 and additional passengers are charge an additional
$0.50 per passenger*/
if (numberOfPassengers <= 1) {
totalFare = 1.80 * distance;
}
else {
totalFare = (1.80 * distance) + 1.00 + (0.50 * (numberOfPassengers - 1));
}
printf("\nYou entered %g as the total miles, %d passengers, and %d for Airport cab ride.", distance, numberOfPassengers, airport);
if (totalFare>5.00) {
printf("\nThe total fare owed is:\t MINFARE.");
}
else {
//Print the statements below based on the user input and the calculations total Fare for cab ride
printf("\nThe total fare owed is:\t $%.2f",totalFare);
}
return 0;
}

Answer 1

I agree with #MikeCAT, but just want to clarify this part about symbolic constant (#define MINFARE '$5.00'). In C single quotes (' ') represents a single character, not a string (You are probably confusing it with some other languages like python that works diferently). As already pointed what you write is a multi-character character literal and not string what you actually wanted. If you want to define a string in C you must use double quotes (" ") (Because even a single character string actually have two characters, that one and '\0' which is an indicator that marks the end of a string).

Answer 2

You are limitting the maximum instead of minimum and goint to print a string "MINFARE" when the maximum is hit.
One fix is:
totalFare>5.00 should be totalFare<5.00 to have the value work as minimum, not maximum.
#define MINFARE '$5.00' should be #define MINFARE "$5.00".
printf("\nThe total fare owed is:\t MINFARE."); should be printf("\nThe total fare owed is:\t " MINFARE ".");
Better fix avoiding using magic number is:
#define MINFARE '$5.00' should be #define MINFARE 5.00
totalFare>5.00 should be totalFare<MINFARE
printf("\nThe total fare owed is:\t MINFARE."); should be printf("\nThe total fare owed is:\t $%.2f.", MINFARE);