Everything you write in business, from sales letters to budget plans, is intended to elicit a response. You want someone to do something. In the sales letter, you want a client to grant you an appointment so that you can demonstrate your latest product. In the budget proposal, you want the board of directors to fund a new project in your department. To be successful in business and in writing, you must persuade.
Persuasive writing stresses benefits instead of features.
Your reader doesn't care how many bells and whistles your product has. The reader wants to know what your product is going to do for him. Consider the perfume industry. Our widget has three new attachments a cat feeder, a plant waterer, and a thermostat controller. Buy our widget with its three new attachments and, finally, relax on a vacation.