C programming help!

Write a program that reads the electricity consumption (in kWh) and computes the electricity bill based on the following information:

The first 50 kWh costs 8.5 cents/kWh

Next 100 kWh costs 9.5 cents/kWh

Next 100 kWh costs 9.8 cents/kWh

The consumption above 250 kWh costs 10.25 cents/kWh

Additional surcharge 20% is added to the bill. The input of the program is one integer and the output will be The total bill is $., where is the price of electricity rounded to two decimal places. Example of input: 303

Corresponding output: The total bill is $34.78.