Enter the weight of the goods and the transportation distance to automatically calculate the total freight

The Transportation Company calculates the freight for the user. the longer the distance, the lower the freight rate per kilometer. the basic freight per kilometer per ton is P = 3, the weight is W, the distance is S, the discount is d, the formula for calculating total freight F is f = p * w * S * (1-D ). The discount rules are as follows:
S <250 km no discount
250 <S <500 2% discount
500 <S <1000 5% discount
1000 <S <2000 8% discount
2000 <S <3000 10% discount
3000 <s 15% discount
Please write a program to automatically calculate the total freight when the user informs the weight of the goods and the distance between transportation.

 

 

# Include <stdio. h>
Void main ()
{
Double P = 3;
Double W, S, D, F;
Printf ("Enter the cargo weight and transportation distance (separated by a number): \ n ");
Scanf ("% lf, % lf", & W, & S );
If (s <= 250)
{
D = 0;
}
Else if (S> 250 & S <= 500)
{
D = 2/100;
}
Else if (S> 500 & S <= 1000)
{
D = 5/100;
}
Else if (S> 1000 & S <= 2000)
{
D = 8/100;
}
Else if (s >= 3000)
{
D = 15/100;
}
F = p * w * S * (1-D );
Printf ("total freight for shipping goods: %. 2lf RMB \ n", F );

}