6. The electric company charges according to the following rate schedule: 9 cents per kilowatt-hour (kw) for the first 300 kwh 8 cents per kwh for the next 300 kwh (up to 60 kwh) 6 cents per kwh for the next 400 kwh (up to 1,000 kwh/ 5 cents per kwh for all electricity used over 1,000 kwh Write a function to compute the total charge for each customer. Write a main function to call the charge calculation function using the following data: Customer Number Kilowatt hours Used 123 725 205 115 464 600 596 327 The program should print a three column chart listing the customer number, the kilowatt hours used, and the charge for each customer. The prograin should also compute and print the number of customers, the total lowatt hours used, and the total charges