# L03 - Coupons

A supermarket awards coupons depending on how much a customer spends on groceries. For example, if you spend $50, you will get a coupon worth eight percent of that amount. The following table shows the percent used to calculate the coupon awarded for different amounts spent. Write a program that calculates and prints the value of the coupon a person can receive based on groceries purchased. Use `printf` to print formatted output. 

Hint: Because the % symbol flags the beginning of a format specifier, if you want to actually print a % you'll need to enter it twice: %%

Here is a sample run: 

|Money spent|Coupon Percentage|
| ----------- | ----------- |
|Less than $10|No coupon|
|From $10 to $60|8%|
|More than $60 to $150|10%|
|More than $150|14%|

##### Sample Dialog 
```
Please enter the cost of your groceries: 14
You win a discount coupon of $ 1.12. (8% of your purchase) 
```