Water consumption in language C

Language

C
Description

It calculates the water consumption and the amount payed for water consumption including VAT 18%
0m³ - 5m³ = 143 Rwf/m³
6m³ - 15m³ = 244 Rfw/m³
16m³ - 40m³ = 374 Rfw/m³
41m³ and over = 740 Rfw/m³

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#include <stdio.h>

#include <stdlib.h>

int main (void)

{

    float VAT, amount, amount_per_m3, sub_amount, water_consumption_in_m3;

    printf ("Enter the value of water consumption in m3: ");

    scanf ("%f", &water_consumption_in_m3);

    (void) getchar ();

    amount_per_m3=0;

    if(water_consumption_in_m3<6)

        amount_per_m3=143;

    if(water_consumption_in_m3>=6&&water_consumption_in_m3<16)

        amount_per_m3=244;

    if(water_consumption_in_m3>=16&&water_consumption_in_m3<41)

        amount_per_m3=374;

    if(water_consumption_in_m3>=41)

        amount_per_m3=740;

    sub_amount=amount_per_m3*water_consumption_in_m3;

    VAT=sub_amount*0.18;

    amount=sub_amount+VAT;

    printf ("Value of VAT: %g\n", VAT);

    printf ("Value of amount: %g\n", amount);

    printf ("Value of amount per m3: %g\n", amount_per_m3);

    printf ("Value of sub amount: %g\n", sub_amount);

    putchar ('\n');

    system ("pause");

    return EXIT_SUCCESS;

}