Complete the program to compute discount rate based on purchase amount and customer status, according to the following table

Purchase Amount Discount Rate Less than 50 0% 50 or more, less than 150 10% 150 or more, less than 500 15% 500 or more, less than 1000 20% 1000 or more 25%  

Any customer who is a special customer and is receiving a discount of 20% or more gets an additional 2% discount For example, a special customer who makes a $300 purchase receives a 15% discount. A special customer who makes a $700 purchase gets 20% plus the additional 2%, for a total discount of 22%.

In your program first use if..else if..else method to calculate the discount based on purchase amount. Then follow that with a single if statement with a logical operator to assign the 2% extra, if valid.

Additional information: Dealing with percentages is usually done with the fractional value ( 0.05 for 5%, for example) so that calculations can be easily done. Note how the provided code multiplies the fraction by 100 in the printf( ) to get a displayable percentage value.