The phrase "a flat charge of" is correct and usable in written English.
It can be used in contexts where you are discussing a fixed fee or cost associated with a service or product.
Example: "The service comes with a flat charge of $50, regardless of the amount of work done."
Alternatives: "a fixed fee of" or "a standard charge of".
There is a flat charge of about $8 for packing and handling, and 5percentt for insurance.
Under the rules, defendants who plead guilty to any offence currently have to pay a flat charge of £150 towards the cost of their prosecution, which is not means tested.
The self-employed have a flat charge of £2.40 per week, plus 8% of profits between £5,715 and £43,875 for 2009-10, plus 1% of earnings above the upper limit.
The menu consists of corned‐beef hash, cheese blintzes, creamed chipped beef, creamed finnan haddie, bacon, pancakes, sausage, hashed brown potatoes, codfish cakes, potato pancakes, creamed chicken, scrambled or poached eggs, baked apples, other fruit and juices, five or six types of breads and honey buns, beverage and a glass of champagne — all for a flat charge of $6.50.
Under the system, which went into effect on Thursday, Medicaid patients could be charged a co-payment of 2.5percentt of the prescription price for drugs costing up to $300 and a flat charge of $7.50 for medication costing more than that.
F.C.C. officials said that they knew weeks ago that AT&T planned to raise the per-minute charges on the basic plan but that they were not unduly concerned because the company promised to continue to offer a different basic plan in which a customer could pay a flat charge of 19 cents a minute for calls made at any time with no minimum or special fee.
Across the street, American Express charged a flat commission of 3 on a 1.7506 rate.
The prices and quality, combined with unfailingly helpful customer service, a 30-day return policy and a flat shipping charge of $6.95 per order (regardless of weight) make SmartBargains a must-look site for sheet shoppers.
Deliveries can be arranged for larger orders on a case-by-case basis for a flat-rate charge of $15.
He explains that construction costs the same in both cases but that while architects typically charge a flat fee of about 10% of construction costs, developers charge whatever mark-up the market will bear, which is often more.
(Virgin America actually doesn't charge a sliding scale; they charge a flat rate of $25 per bag which is why they are actually the checked-bag friendliest out of all the airlines).
